Router Bits With 3⁄8" Cutting Diameter

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76 Products

Router Bit Sets


Chamfering Cut Style	Corner Cut Style	Square Cut Style	Flush-Trimming Cut Style

Groove Cut Style	Hinge Mortise Cut Style	Joining Cut Style	Panel Pilot Cut Style

Keep a variety of router bits on hand to cut grooves, chamfers, and other detailed shapes into wood and plastic. Made of carbide-tipped high-speed steel, these bits provide a longer tool life and faster cutting speeds than standard high-speed steel bits.

Flush-Trimming Cut Style—Flush-trimming bits cut layers of material flush to one another or make cuts along a template.

Hinge-Mortise Cut Style—Hinge-mortise bits create large, shallow recesses.

Joining Cut Style—Joining bits create shapes that fit together in order to form joints.

Panel-Pilot Cut Style—Panel-pilot bits have a pointed tip that creates starter holes for efficient plunge cutting in wood. To make precise cutouts, use the top of the tip as a pilot and guide the bit along a template placed below the workpiece.

	Shank Dia.	For Tool Type	For Use On		Each
Uncoated Carbide-Tipped High-Speed Steel







	Multipurpose

	6	Chamfering Corner Rounding Square Flush Trimming Joining	One Chamfer Router Bit: 1-5/16" Cutting Diameter One Flush-Trimming Router Bit: 3/8" Cutting Diameter One Dovetail Router Bit: 1/2" Cutting Diameter One Rounded-Corner Bit: 1/4" Cutting Diameter Two Square Router Bits: 1/4" and 1/2" Cutting Diameters	1/4"	Hand Router, Router Table	Softwood, Hardwood, Plastic, Laminate, Composite	6635N102	0000000


	6	Square	Six Square Router Bits: 1/4", 5/16", 3/8", 1/2", 5/8", and 3/4" Cutting Diameters	1/4"	Hand Router, Router Table	Softwood, Hardwood, Plastic, Laminate, Composite	6635N103	00000
	10	Chamfering Corner Rounding Square Flush Trimming Groove Hinge Mortise Joining	One Chamfer Router Bit: 1-5/16" Cutting Diameter Two Rounded-Corner Bits: 1/4" and 3/8" Cutting Diameters One Flush-Trimming Router Bit: 1/2" Cutting Diameter One Rounded-Groove Router Bit: 1/4" Cutting Diameter One V-Groove Router Bit: 9/16" Cutting Diameter One Hinge-Mortise Router Bit: 1/2" Cutting Diameter One Dovetail Router Bit: 1/2" Cutting Diameter Two Square Router Bits: 1/4" and 3/4" Cutting Diameters	1/2"	Hand Router, Router Table	Softwood, Hardwood, Plastic, Laminate, Composite	6635N104	000000
	15	Chamfering Corner Rounding Square Flush Trimming Groove Joining	Two Chamfer Router Bits: 1" and 1-3/8" Cutting Diameters Two Rounded-Corner Bits: 1/8" and 1/4" Cutting Diameters One Cove Router Bit: 3/8" Cutting Diameter Two Flush-Trimming Router Bits: 1/2" and 5/8" Cutting Diameters One V-Groove Router Bit: 5/8" Cutting Diameter One Dovetail Router Bit: 9/16" Cutting Diameter One Roman Ogee Router Bit: 5/32" Cutting Diameter One Slotting Router Bit: 1-1/4" Cutting Diameter One Tongue-and-Groove Router Bit: 1-1/4" Cutting Diameter Three Square Router Bits: 1/4", 1/2", and 5/8" Cutting Diameters	1/4"	Hand Router, Router Table	Softwood, Hardwood, Plastic, Laminate, Composite	6635N105	000000
	30	Chamfering Corner Rounding Square Flush Trimming Groove Hinge Mortise Joining Panel Pilot	Two Chamfer Router Bits: 1" and 1-3/8" Cutting Diameters One Beaded-Corner Router Bit: 1-1/16" Cutting Diameter One Wavy-Corner Router Bit: 1-1/4" Cutting Diameter Five Rounded-Corner Router Bits: 1/8", 1/4", 5/16", 3/8", and 1/2" Cutting Diameters Two Cove Router Bits: 7/8" and 1-1/8" Cutting Diameters One Dovetail Router Bit: 9/16" Cutting Diameter One Hinge-Mortise Router Bit: 1/2" Cutting Diameter One Panel-Pilot Router Bit: 5/16" Cutting Diameter Three Flush-Trimming Router Bits: 1/2" and 5/8" Cutting Diameters Two Rabbet Router Bits: 1-1/4" Cutting Diameter Two Rounded-Groove Router Bits: 1/2" and 3/4" Cutting Diameters Two V-Groove Router Bits: 5/8" Cutting Diameter Seven Square Router Bits: 5/32", 1/4", 5/16", 3/8", 1/2", 5/8", and 3/4" Cutting Diameters	1/4"	Hand Router, Router Table	Softwood, Hardwood, Plastic, Laminate, Composite	6635N106	000000




			Template Routing

			4	Flush Trimming	Four Flush-Trimming Router Bits: 1/4", 3/8", and 1/2" Cutting Diameters	1/4"	Hand Router, Router Table	Wood, Particleboard, Plywood, Laminate	6635N101	000000

Trimming Router Bits

Cut layers of material flush to one another or make cuts along a template.

Uncoated Carbide-Tipped High-Speed Steel


Flush-Trimming Cut Style (Bottom Pilot)	Flush-Trimming Cut Style (Top Pilot)

Flush-Trimming Cut Style (Top Pilot)—Plunge-Cut


Bottom Pilot	Top Pilot

Carbide-tipped high-speed steel bits are for use on wood and laminate.

Bottom Pilot—Bottom-pilot bits trim material from an upper layer of the workpiece so that it is flush with the layer below. In addition to flush trimming, they can be used to cut along a template placed below the workpiece.

Top Pilot—Top-pilot bits cut a lower layer of the workpiece flush to the layer above. In addition to flush trimming, they can be used for pattern cutting with a template placed above the workpiece.

Plunge Cut—Bits with a plunge cut type let you cut directly into the workpiece from above. Other bits are best for operations where the peripheral teeth do most of the work such as trimming, contouring, and finishing.

Straight Flutes—Bits with straight flutes are for general purpose use. They quickly remove material, leaving a rough finish.

Ball Bearing—Ball-bearing pilots guide the bit for accurate cuts and produce less friction than solid pilots for smoother operation.

Pilot Location—Pilot location describes the position of the pilot when the bit is used for hand routing. The pilot location is reversed when using the bit with a router table.

	Overall Lg.	Router Bit Pilot Type	Ball Bearing Pilot Dia.	No. of Flutes	For Tool Type	For Use On		Each
Flush-Trimming Cut Style (Bottom Pilot)







	Straight Flutes

	3/8"	1/2"	1/4"	2 1/4"	Ball Bearing	3/8"	2	Hand Router, Router Table	Wood, Particleboard, Plywood, Laminate	35505A62	000000


	3/8"	1"	1/4"	2 3/4"	Ball Bearing	3/8"	2	Hand Router, Router Table	Wood, Particleboard, Plywood, Laminate	35505A63	00000
	3/8"	1"	1/2"	3 1/8"	Ball Bearing	3/8"	2	Hand Router, Router Table	Wood, Particleboard, Plywood, Laminate	3116N106	00000
	3/8"	1 1/4"	1/4"	2 3/8"	Ball Bearing	3/8"	2	Hand Router, Router Table	Wood, Particleboard, Plywood, Laminate	3116N23	00000


	Flush-Trimming Cut Style (Top Pilot)







					Straight Flutes

					3/8"	1/2"	1/4"	2"	Ball Bearing	3/8"	2	Hand Router, Router Table	Wood, Particleboard, Plywood, Laminate	3116N16	00000


					Flush-Trimming Cut Style (Top Pilot)—Plunge-Cut







									Straight Flutes

									3/8"	1/2"	1/4"	2"	Ball Bearing	3/8"	3	Hand Router, Router Table	Wood, Particleboard, Plywood, Laminate	3116N112	00000

Uncoated Micrograin Carbide

Flush-Trimming Cut

Style (Bottom Pilot)

Bottom Pilot with

Overhang Cutoff Edge

Micrograin carbide bits provide superior wear resistance, long tool life, and a cleaner finish than bits made of other materials.

Use carbide bits for longer tool life and faster cutting speeds than high-speed steel.

Straight Flutes—Bits with straight flutes are for general purpose use. They quickly remove material, leaving a rough finish.

Ball Bearing—Ball-bearing pilots guide the bit for accurate cuts and produce less friction than solid pilots for smoother operation.

1 Flute—Choose a bit with one flute for a faster cut; bits with more flutes produce a smoother finish.

Overhang Cutoff Edge—Bits with an overhang cutoff edge remove most of the excess material from the edge of workpieces such as countertops and sink cutouts, but they leave some material leftover for precise trimming after the installation. This process minimizes the risk of chipping laminate during installation and produces a clean, professional finish.

Pilot Location—Pilot location describes the position of the pilot when the bit is used for hand routing. The pilot location is reversed when using the bit with a router table.

	Overall Lg.	Router Bit Pilot Type	Ball Bearing Pilot Dia.	No. of Flutes	For Tool Type	For Use On	Features		Each
Flush-Trimming Cut Style (Bottom Pilot)







	Straight Flutes

	3/8"	1/2"	1/4"	2 7/16"	Ball Bearing	3/4"	1	Hand Router, Router Table, CNC Machine	Wood, Particleboard, Plywood, Laminate	Overhang Cutoff Edge	6557N12	000000

Straight and Spiral Router Bits for Wood, Particle Board, and Plywood

Square Cut Style

Create square slots, pockets, and edges in wood. These router bits are plunge cutting, letting you cut directly into the workpiece from above. They do not have a pilot, so guide your router along a straight edge when hand routing to make accurate cuts.

Uncoated High-Speed Steel

Square Cut

Style—Plunge-Cut,

Straight Flutes

Straight Flutes—Bits with straight flutes are for general purpose use. They quickly remove material, leaving a rough finish. They’re made from high-speed steel.

	Overall Lg.	No. of Flutes	For Tool Type	For Use On		Each
Square Cut Style—Plunge-Cut







	Straight Flutes

	3/8"	1"	1/4"	2 1/4"	2	Hand Router, Router Table, CNC Machine	Wood, Particleboard, Plywood	2891A24	000000


	3/8"	1 1/2"	1/2"	3"	2	Hand Router, Router Table, CNC Machine	Wood, Particleboard, Plywood	2891A14	00000

Uncoated Carbide-Tipped High-Speed Steel

Square Cut

Style—Plunge-Cut,

Straight Flutes

Carbide-tipped high-speed steel bits provide a longer tool life and faster cutting speeds than standard high-speed steel bits.

Straight Flutes—Bits with straight flutes are for general purpose use. They quickly remove material, leaving a rough finish. They’re made from high-speed steel.

	Overall Lg.	No. of Flutes	For Tool Type	For Use On		Each
Square Cut Style—Plunge-Cut







	Straight Flutes

	3/8"	1"	1/4"	2 1/4"	2	Hand Router, Router Table, CNC Machine	Wood, Particleboard, Plywood	2904A13	000000


	3/8"	1"	1/2"	2 3/4"	2	Hand Router, Router Table, CNC Machine	Wood, Particleboard, Plywood	2904A14	00000
	3/8"	1 1/4"	1/2"	3"	2	Hand Router, Router Table, CNC Machine	Wood, Particleboard, Plywood	2904A15	00000

Uncoated Carbide

Square Cut

Style—Plunge-Cut,

Spiral Flute

Spiral Flute—Bits with spiral flutes leave a smoother finish than straight-flute bits and make plunge cuts more easily. They're made of solid carbide for longer tool life and faster cutting speeds than high-speed steel.

Downward Chip Removal—Spiral-flute bits with downward chip removal push chips down for applications that require a smooth finish on the cut's top edge.

Upward Chip Removal—Spiral-flute bits with upward chip removal lift chips up for applications that require a smooth finish on the bottom edge of the cut. Securely clamp the workpiece before routing to prevent lifting.

Upward and Downward Chip Removal—Spiral-flute bits with upward and downward chip removal are also known as compression bits. Acting similar to scissors, they move chips away from the top and bottom edges of the cut for a smooth finish on both.

	Overall Lg.	No. of Flutes	For Tool Type	For Use On		Each
Square Cut Style—Plunge-Cut







	Spiral Flutes with Upward Chip Removal

	3/8"	1 1/8"	3/8"	3"	2	CNC Machine	Wood, Particleboard, Plywood	27395A28	000000


	3/8"	1 1/4"	3/8"	3"	2	CNC Machine	Wood, Particleboard, Plywood	27395A37	00000
	3/8"	1 1/4"	3/8"	3"	3	Hand Router, Router Table, CNC Machine	Wood, Particleboard, Plywood	27395A202	00000
	3/8"	1 1/4"	1/2"	3"	2	CNC Machine	Wood, Particleboard, Plywood	27395A29	000000




			Spiral Flutes with Downward Chip Removal

			3/8"	1 1/8"	3/8"	3"	2	CNC Machine	Wood, Particleboard, Plywood	27395A48	00000


			3/8"	1 1/4"	3/8"	3"	2	CNC Machine	Wood, Particleboard, Plywood	27395A57	00000
			3/8"	1 1/4"	3/8"	3"	3	Hand Router, Router Table, CNC Machine	Wood, Particleboard, Plywood	27395A205	00000
			3/8"	1 1/4"	1/2"	3"	2	CNC Machine	Wood, Particleboard, Plywood	27395A49	000000




					Spiral Flutes with Upward and Downward Chip Removal

					3/8"	7/8"	3/8"	3"	2	CNC Machine	Wood, Particleboard, Plywood	2911N15	000000


					3/8"	1 1/8"	3/8"	3"	2	CNC Machine	Wood, Particleboard, Plywood	2911N12	000000

Router Bits for Wood Joining

Create shapes that fit together to form wood joints commonly used to build doors and frames.

Keyhole Wood Joint—Uncoated Carbide-Tipped Steel

Keyhole joints are often used as wall-mounting slots.

	Overall Lg.	No. of Flutes	For Tool Type	For Use On		Each
Joining Cut Style







	Straight Flutes

	3/8"	7/16"	1/4"	1 9/16"	1	Hand Router, Router Table	Wood, Particleboard, Plywood	6471N23	000000

Straight and Spiral Router Bits for Plastic

The smooth flutes and sharp cutting edges on these router bits cleanly cut square slots, pockets, and edges in most plastics, including polyethylene, polycarbonate, and vinyl. They do not have a pilot, so guide your router along a straight edge when hand routing to make accurate cuts.

Uncoated High-Speed Steel


Square Cut Style	Straight Flute

High-speed steel bits are for general purpose use. They can be used with hand tools, router tables, and CNC machines.

Straight Flutes—Bits with straight flutes are for general purpose use. They quickly remove material, leaving a rough finish.

	Overall Lg.	No. of Flutes	For Tool Type	For Use On		Each
Square Cut Style







	Straight Flutes

	3/8"	1"	3/8"	2 1/2"	2	Hand Router, Router Table, CNC Machine	Hard Plastic, Soft Plastic	36035A45	000000

Uncoated Carbide


Square Cut Style	Square Cut Style—Plunge-Cut


Straight Flute	Square Cut Style Spiral Flute

Square Cut Style—Plunge-Cut, Spiral Flute

Use carbide bits for longer tool life and faster cutting speeds than high-speed steel.

Straight Flutes—Bits with straight flutes are for general purpose use. They quickly remove material, leaving a rough finish.

Spiral Flute—Bits with spiral flutes leave a smoother finish than straight-flute bits.

Downward Chip Removal—Bits with downward chip removal push chips down for applications that require a smooth finish on the cut's top edge.

Upward Chip Removal—Bits with upward chip removal lift chips up for applications that require a smooth finish on the bottom edge of the cut. Securely clamp the workpiece before routing to prevent lifting.

1 Flute—Choose a bit with one flute for a faster cut; bits with more flutes produce a smoother finish.

	Overall Lg.	No. of Flutes	For Tool Type	For Use On		Each
Square Cut Style







	Straight Flutes

	3/8"	7/8"	3/8"	2 1/2"	2	CNC Machine	Hard Plastic, Composite	31615A23	000000


	3/8"	7/8"	3/8"	2 1/2"	1	CNC Machine	Hard Plastic, Soft Plastic	36035A53	00000




			Spiral Flutes with Upward Chip Removal

			3/8"	5/8"	3/8"	3"	3	Hand Router, Router Table, CNC Machine	Hard Plastic, Soft Plastic	6361N27	00000


			3/8"	1 1/8"	3/8"	3"	2	CNC Machine	Hard Plastic, Soft Plastic	6361N28	00000




					Spiral Flutes with Downward Chip Removal

					3/8"	5/8"	3/8"	3"	3	Hand Router, Router Table, CNC Machine	Hard Plastic, Soft Plastic	6361N48	00000


					Square Cut Style—Plunge-Cut







									Spiral Flutes with Upward Chip Removal

									3/8"	5/8"	3/8"	2 1/2"	1	CNC Machine	Hard Plastic, Soft Plastic	6361N26	00000

Ceramic-Coated Carbide

Square Cut Style

Spiral Flute

Ceramic-coated carbide bits have a coating that increases the hardness of the bits and protects them from high heat, making them last about 2.5 times longer than uncoated bits. Use carbide bits for longer tool life and faster cutting speeds than high-speed steel.

Spiral Flute—Bits with spiral flutes leave a smoother finish than straight-flute bits.

Downward Chip Removal—Bits with downward chip removal push chips down for applications that require a smooth finish on the cut's top edge.

	Overall Lg.	No. of Flutes	For Tool Type	For Use On		Each
Square Cut Style







	Spiral Flutes with Upward Chip Removal

	3/8"	1 1/8"	3/8"	3"	3	Hand Router, Router Table, CNC Machine	Hard Plastic, Soft Plastic	6537N17	0000000




			Spiral Flutes with Downward Chip Removal

			3/8"	1 1/8"	3/8"	3"	3	Hand Router, Router Table, CNC Machine	Hard Plastic, Soft Plastic	6537N25	000000

Straight and Spiral Router Bits for Foam

The cutting edges of these bits have a shallow angle to carve foam quickly and accurately. With a square cut style, they create slots, pockets, and edges. These bits are good for plunge cutting, letting you cut directly into the workpiece from above. They do not have a pilot, so guide your router along a straight edge when hand routing to make accurate cuts.

Uncoated High-Speed Steel


Square Cut Style—Plunge-Cut	Square Cut Style—Plunge-Cut, V Flutes

High-speed steel bits are for general purpose use. They can be used with hand tools, router tables, and CNC machines.

V Flutes—V flutes are evenly balanced to create a smooth finish when using a hand router.

	Overall Lg.	No. of Flutes	For Tool Type	For Use On		Each
Square Cut Style—Plunge-Cut







	V Flutes

	3/8"	1"	3/8"	2 1/2"	2	Hand Router, Router Table, CNC Machine	Foam	6602N14	000000

Uncoated Carbide

Square Cut

Style—Plunge-Cut

Square Cut

Style—Plunge-Cut,

Spiral Flute

Use carbide bits for longer tool life and faster cutting speeds than high-speed steel. Their extreme hardness means they are brittle, so a highly rigid setup, such as a CNC machine, is necessary to prevent the bit from breaking.

Spiral Flute—Bits with spiral flutes leave a smoother finish than V-flute bits and make plunge cuts more easily.

	Overall Lg.	No. of Flutes	For Tool Type	For Use On		Each
Square Cut Style—Plunge-Cut







	Spiral Flutes with Upward Chip Removal

	3/8"	4"	3/8"	6"	2	CNC Machine	Foam	2927N112	0000000

Straight and Spiral Router Bits for Aluminum

Also known as O-flute bits, the flutes on these bits are open and rounded for efficient chip removal when cutting aluminum. This also reduces heat to prevent melting or warping. Use these bits to create square slots, pockets, and edges. They are plunge cutting, letting you cut directly into the workpiece from above. They do not have a pilot, so guide your router along a straight edge when hand routing to make accurate cuts.

Uncoated Carbide

Square Cut

Style—Plunge-Cut,

Straight Flute

Square Cut

Style—Plunge-Cut,

Spiral Flute

Carbide bits have a longer life and faster cutting speeds than high-speed steel bits. Their extreme hardness makes them brittle, so they’re not recommended for use with hand tools. A highly rigid setup, such as a CNC machine, is necessary to keep bits from breaking.

Straight Flute—Bits with straight flutes are for general purpose use. They quickly remove material, leaving a rough finish.

Spiral Flute—Bits with spiral flutes leave a smoother finish than straight-flute bits and make plunge cuts more easily.

Downward Chip Removal—Bits with downward chip removal push chips down for applications that require a smooth finish on the cut's top edge.

1 Flute—Choose a bit with one flute for a faster cut.

	Overall Lg.	No. of Flutes	For Tool Type	For Use On		Each
Square Cut Style—Plunge-Cut







	Straight Flutes with Upward Chip Removal

	3/8"	7/8"	3/8"	2 1/2"	1	CNC Machine	Aluminum	3317A35	000000




			Spiral Flutes with Upward Chip Removal

			3/8"	3/4"	3/8"	3"	1	CNC Machine	Aluminum	3317A27	00000


			3/8"	1 1/8"	3/8"	3"	1	CNC Machine	Aluminum	3317A28	000000




					Spiral Flutes with Downward Chip Removal

					3/8"	1/8"	3/8"	3"	1	CNC Machine	Aluminum	3317A48	000000


					3/8"	3/4"	3/8"	3"	1	CNC Machine	Aluminum	3317A47	000000

Router Bits for Grooves

Carve grooves in wood and laminate. These bits have straight flutes that quickly remove material, leaving a rough finish. Made of carbide-tipped high-speed steel, they provide a longer tool life and faster cutting speeds than standard high-speed steel bits.

Uncoated Carbide-Tipped High-Speed Steel


V-Shaped Grooves	V-Shaped Grooves

	Shank Dia.	Overall Lg.	No. of Flutes	For Tool Type	For Use On		Each
V-Shaped Grooves







	Straight Flutes

	3/8"	7/16"	90°	1/4"	1 5/8"	2	Hand Router, Router Table, CNC Machine	Wood, Particleboard, Plywood, Laminate	3324N11	000000

Ball-End Router Bits

For smooth contour carving in wood, plastic, and aluminum, these bits have a ball-nose design. All are made of solid carbide for a long tool life and fast cutting speeds. The extreme hardness of carbide bits means they are brittle, so they're not recommended for use with hand tools. A highly rigid setup, such as a CNC machine, is necessary to prevent the bit from breaking. The spiral flutes pull chips up from the workpiece while making cuts; securely clamp your material before routing to prevent lifting.

Uncoated Carbide

Ball Cut Style

	Overall Lg.	No. of Flutes	For Tool Type	For Use On		Each
Ball Cut Style







	Spiral Flutes with Upward Chip Removal

	3/8"	1 1/8"	3/8"	3"	2	CNC Machine	Wood, Particleboard, Plywood, Hard Plastic, Soft Plastic, Aluminum	8793A24	000000

Router Bits for Composites

The sharp cutting edges and flute shapes of these tools are specifically designed to cut through tough composite materials, such as carbon fiber and fiberglass, with minimal resistance. This means less strain on your router and more control when cutting, leading to smooth cuts. They're made of solid carbide for longer tool life and faster cutting speeds than high-speed steel.

Uncoated Carbide


Square Cut Style	Drill/Mill Cut Style—Plunge-Cut	Square Cut Style—Plunge-Cut


Square Cut Style, Diamond-Pattern Flutes	Square Cut Style, Trapezoid Pattern Flutes	Drill/Mill Cut Style—Plunge-Cut, Diamond-Pattern Flutes

Drill/Mill Cut Style—Plunge-Cut, Trapezoid Pattern Flutes	Square Cut Style—Plunge-Cut, Diamond-Pattern Flutes	Square Cut Style—Plunge-Cut, Trapezoid Pattern Flutes

Square Cut Style—Use bits with a square cut style to cut slots, pockets, and edges.

Drill/Mill Cut Style—Bits with a drill/mill cut style have a pointed end for easier plunge cuts than bits with a square cut style.

Plunge Cut—Plunge-cutting bits let you cut directly into the workpiece from above. Other bits are best for operations where the peripheral teeth do most of the work, such as trimming, contouring, and finishing.

60° Compression Angle—The unique cutting angle and sharp edges slice through difficult material such as aramid. Often used in the aerospace industry to cut wings, rudders, and other structural components. They have upward and downward chip removal—acting similar to scissors, they move chips away from the top and bottom edges of the cut for a smooth finish on both.

Diamond-Pattern Flutes—Diamond-pattern flutes' small, staggered teeth aggressively cut, yet leave a smooth finish.

Trapezoid Pattern Flutes—Trapezoid-pattern flutes are like diamond-pattern flutes, but with overlapping cutting edges for an even smoother cut.

	Cutting Dia.	Overall Lg.	No. of Flutes	For Tool Type	For Use On		Each
Square Cut Style







		Diamond-Pattern Flutes

		3/8"	1"	3/8"	2 1/2"	—	Hand Router, Router Table, CNC Machine	Fiberglass, Composite	6582N52	000000




				Trapezoid Pattern Flutes

				3/8"	1"	3/8"	3"	—	Hand Router, Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	6582N56	00000


				Drill/Mill Cut Style—Plunge-Cut







								Diamond-Pattern Flutes

								3/8"	1"	3/8"	2 1/2"	—	CNC Machine	Fiberglass, Composite	8785A45	00000




										Trapezoid Pattern Flutes

										3/8"	1"	3/8"	3"	—	Hand Router, Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	6582N61	00000


										Square Cut Style—Plunge-Cut







														Diamond-Pattern Flutes

														3/8"	1"	3/8"	2 1/2"	—	CNC Machine	Fiberglass, Composite	8785A25	00000


														3/8"	1 1/8"	3/8"	3"	—	CNC Machine	Carbon Fiber, Graphite, Composite	3334A15	000000




																Trapezoid Pattern Flutes

																3/8"	1"	3/8"	3"	—	Hand Router, Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	6582N65	00000




60° Compression Spiral Flutes with Upward and Downward Chip Removal

3/8"	3/4"																	3/8"	3"	2	Router Table, CNC Machine	Aramid, Composite	6582N141	000000


3/8"	2"																	3/8"	4"	2	Router Table, CNC Machine	Aramid, Composite	6582N142	000000

Diamond-Coated Router Bits for Composites

With a diamond coating, these bits resist wear when used on abrasive materials, making them last about 50 times longer than uncoated bits. Their sharp cutting edges and flute shapes are specifically designed to cut through tough materials such as composites with minimal resistance. This means less strain on your router and more control when cutting, leading to a smooth cut. Bits are made of solid carbide for longer tool life and faster cutting speeds than high-speed steel.

Diamond-Coated Carbide


Square Cut Style	Drill/Mill Cut Style—Plunge-Cut	Square Cut Style—Plunge-Cut


Square Cut Style Straight Flutes	Square Cut Style Spiral Flute	Drill/Mill Cut Style—Plunge-Cut, Straight Flutes

Drill/Mill Cut Style—Plunge-Cut, Diamond-Pattern Flutes	Square Cut Style—Plunge-Cut, 30° Compression Angle, Herringbone Compression Flute	Square Cut Style—Plunge-Cut, Spiral Flute, 45° Compression Angle

Square Cut Style—Plunge-Cut, 60° Compression Angle, Spiral Flute	Square Cut Style—Plunge-Cut, Roughed Spiral Flute	Square Cut Style—Plunge-Cut, Diamond-Pattern Flutes

Square Cut Style—Use bits with a square cut style to cut slots, pockets, and edges.

Drill/Mill Cut Style—Bits with a drill/mill cut style have a pointed end for easier plunge cuts than square-cut bits.

Plunge Cut—Plunge-cutting bits let you cut directly into the workpiece from above. Other bits are best for operations where the peripheral teeth do most of the work such as trimming, contouring, and finishing.

Straight Flutes—Bits with straight flutes are for general purpose use. They quickly remove material, leaving a rough finish.

Spiral Flute—Bits with spiral flutes leave a smoother finish than straight-flute bits and make plunge cuts more easily (for plunge-cutting bits).

Roughed Spiral Flute—Nicks on the edges of the spirals reduce the amount of force required to cut through composites, giving you more control as you cut.

Diamond-Pattern Flutes—Diamond-pattern flutes' small, staggered teeth aggressively cut, yet leave a smooth finish.

Herringbone Compression Flute—Herringbone-compression flutes have both upward and downward spiral flutes in an alternating pattern. This quickly and effectively clears chips, which prevents overheating and produces clean cuts.

Upward and Downward Chip Removal—Bits with upward and downward chip removal are also known as compression bits. Acting similar to scissors, they move chips away from the top and bottom edges of the cut for a smooth finish on both. Bits with higher compression angles cut more efficiently than bits with lower compression angles, reducing the amount of force required to cut through your material. They are also more resistant to wear.

	Cutting Dia.	Lg. of Cut	Shank Dia.	Overall Lg.	No. of Flutes	For Tool Type	For Use On		Each
Square Cut Style







				Straight Flutes

				3/8"	1"	3/8"	3"	14	CNC Machine	Fiber-Reinforced Plastic, Composite	6582N12	0000000




						Spiral Flutes with Upward Chip Removal

						3/8"	1 1/8"	3/8"	3"	12	Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	6582N106	000000


						3/8"	1 1/2"	3/8"	3"	12	Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	6582N107	000000




								Diamond-Pattern Flutes

								3/8"	3/4"	3/8"	2 1/2"	12	Router Table, CNC Machine	Carbon Fiber, Composite	6582N81	000000


								3/8"	1 1/8"	3/8"	3"	12	Router Table, CNC Machine	Carbon Fiber, Composite	6582N83	000000
								3/8"	1 1/2"	3/8"	4"	12	Router Table, CNC Machine	Carbon Fiber, Composite	6582N84	000000


								Drill/Mill Cut Style—Plunge-Cut







												Straight Flutes

												3/8"	1"	3/8"	3"	14	CNC Machine	Fiber-Reinforced Plastic, Composite	6582N16	000000




														Diamond-Pattern Flutes

														3/8"	1 1/4"	3/8"	3"	12	Router Table, CNC Machine	Carbon Fiber, Composite	6582N102	000000


														Square Cut Style—Plunge-Cut







																		Diamond-Pattern Flutes

																		3/8"	1 1/8"	3/8"	3"	12	Router Table, CNC Machine	Carbon Fiber, Composite	6582N96	000000


3/8"	1 1/2"																	3/8"	4"	12	Router Table, CNC Machine	Carbon Fiber, Composite	6582N97	000000




		Roughed Spiral Flutes with Upward Chip Removal

		3/8"	3/4"															3/8"	3"	6	Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	6582N117	000000


		3/8"	1 1/8"															3/8"	3"	6	Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	6582N118	000000




				45° Compression Angle Spiral Flutes with Upward and Downward Chip Removal

				3/8"	3/4"													3/8"	3"	4	Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	6582N125	000000


				3/8"	2"													3/8"	4"	4	Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	6582N126	000000




						60° Compression Spiral Flutes with Upward and Downward Chip Removal

						3/8"	3/4"											3/8"	3"	2	Router Table, CNC Machine	Carbon Fiber, Fiber-Reinforced Plastic, Fiberglass, Composite	6582N131	000000


						3/8"	2"											3/8"	4"	2	Router Table, CNC Machine	Carbon Fiber, Fiber-Reinforced Plastic, Fiberglass, Composite	6582N132	000000




								30° Compression Angle Herringbone Compression Flutes with Upward and Downward Chip Removal

								3/8"	7/8"									3/8"	3"	4	Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	6582N137	000000

Spiral Router Bits for Steel and Stainless Steel

The aluminum-titanium-nitride (AlTiN) coating on these bits resists heat and wear when cutting steel and stainless steel. They have a square cut style for creating slots, pockets, and edges. They're made of solid carbide for longer tool life and faster cutting speeds than high-speed steel. Their extreme hardness means they are brittle, so a highly rigid setup, such as a CNC machine, is necessary to prevent the bit from breaking. With spiral flutes, they leave a smoother finish than straight-flute bits and are good for making plunge cuts. The flutes lift chips up from the workpiece for applications that require a smooth finish on the bottom edge of the cut. Securely clamp your material before routing to prevent lifting. Bits with more flutes produce a smoother finish.

Aluminum Titanium Nitride (AlTiN)-Coated Carbide


	Square Cut Style Spiral Flute 2 Flutes

	Overall Lg.	No. of Flutes	For Tool Type	For Use On		Each
Square Cut Style







	Spiral Flutes with Upward Chip Removal

	3/8"	1/2"	3/8"	3"	2	CNC Machine	Steel, Stainless Steel	3324A14	000000

Straight Router Bits for Ceramics

With a diamond coating, these bits resist wear when used on ceramics and other highly abrasive material. All have a square cut style for creating slots, pockets, and edges. They do not have a pilot, so guide your router along a straight edge when hand routing to ensure straight, accurate cuts.

Diamond-Coated High-Speed Steel

	Overall Lg.	For Tool Type	For Use On		Each
Square Cut Style







	Fluteless

	3/8"	1"	3/8"	3"	Hand Router, Router Table, CNC Machine	Ceramic	8796A13	000000

Panel Pilot Router Bits

The pointed tip creates starter holes for efficient plunge cutting in wood. For precise cutouts, use the tip as a pilot and guide the bit along a template placed below the workpiece.

Uncoated Carbide-Tipped High-Speed Steel


Panel Pilot Cut Style	Panel-Pilot Cut Style, Straight Flutes

Straight Flutes—Bits with straight flutes are for general purpose use. They quickly remove material, leaving a rough finish. Made of carbide-tipped high-speed steel, these bits provide a longer tool life and faster cutting speeds than standard high-speed steel bits.

	Overall Lg.	Router Bit Pilot Type	No. of Flutes	For Tool Type	For Use On		Each
Panel-Pilot Cut Style







	Straight Flutes

	3/8"	1"	3/8"	3"	Solid	1	Hand Router	Wood, Particleboard, Plywood	3190A12	000000