Compression Router Bits | McMaster-Carr

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174 Products

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 Carbide

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.

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







	Spiral Flutes with Upward Chip Removal

	1/8"	1/2"	1/4"	2"	2	CNC Machine	Wood, Particleboard, Plywood	00000000	000000


	5/32"	5/8"	1/4"	2"	2	CNC Machine	Wood, Particleboard, Plywood	00000000	00000
	3/16"	3/4"	1/4"	2 1/2"	2	CNC Machine	Wood, Particleboard, Plywood	00000000	00000
	1/4"	3/4"	1/4"	2 1/2"	3	Hand Router, Router Table, CNC Machine	Wood, Particleboard, Plywood	000000000	00000
	1/4"	7/8"	1/4"	2 1/2"	2	CNC Machine	Wood, Particleboard, Plywood	00000000	00000
	1/4"	1"	1/4"	2 1/2"	2	CNC Machine	Wood, Particleboard, Plywood	00000000	00000
	5/16"	1 1/8"	5/16"	3"	2	CNC Machine	Wood, Particleboard, Plywood	00000000	00000
	5/16"	1 1/8"	1/2"	3"	2	CNC Machine	Wood, Particleboard, Plywood	00000000	000000
	3/8"	1 1/8"	3/8"	3"	2	CNC Machine	Wood, Particleboard, Plywood	00000000	00000
	3/8"	1 1/4"	3/8"	3"	2	CNC Machine	Wood, Particleboard, Plywood	00000000	00000
	3/8"	1 1/4"	3/8"	3"	3	Hand Router, Router Table, CNC Machine	Wood, Particleboard, Plywood	000000000	00000


	3/8"	1 1/4"	1/2"	3"	2	CNC Machine	Wood, Particleboard, Plywood	00000000	000000
	1/2"	1 1/4"	1/2"	3 1/2"	2	CNC Machine	Wood, Particleboard, Plywood	00000000	000000
	1/2"	1 1/2"	1/2"	3 1/2"	3	Hand Router, Router Table, CNC Machine	Wood, Particleboard, Plywood	000000000	000000
	1/2"	1 5/8"	1/2"	3 1/2"	2	CNC Machine	Wood, Particleboard, Plywood	00000000	000000
	1/2"	2"	1/2"	4"	3	Hand Router, Router Table, CNC Machine	Wood, Particleboard, Plywood	000000000	000000
	1/2"	2 1/8"	1/2"	4"	2	CNC Machine	Wood, Particleboard, Plywood	00000000	000000




			Spiral Flutes with Downward Chip Removal

			1/8"	1/2"	1/4"	2"	2	CNC Machine	Wood, Particleboard, Plywood	00000000	00000


			5/32"	5/8"	1/4"	2"	2	CNC Machine	Wood, Particleboard, Plywood	00000000	00000
			3/16"	3/4"	1/4"	2 1/2"	2	CNC Machine	Wood, Particleboard, Plywood	00000000	00000
			1/4"	7/8"	1/4"	2 1/2"	2	CNC Machine	Wood, Particleboard, Plywood	00000000	00000
			1/4"	1"	1/4"	2 1/2"	2	CNC Machine	Wood, Particleboard, Plywood	00000000	00000
			5/16"	1 1/8"	5/16"	3"	2	CNC Machine	Wood, Particleboard, Plywood	00000000	00000
			5/16"	1 1/8"	1/2"	3"	2	CNC Machine	Wood, Particleboard, Plywood	00000000	000000
			3/8"	1 1/8"	3/8"	3"	2	CNC Machine	Wood, Particleboard, Plywood	00000000	00000
			3/8"	1 1/4"	3/8"	3"	2	CNC Machine	Wood, Particleboard, Plywood	00000000	00000
			3/8"	1 1/4"	3/8"	3"	3	Hand Router, Router Table, CNC Machine	Wood, Particleboard, Plywood	000000000	00000
			3/8"	1 1/4"	1/2"	3"	2	CNC Machine	Wood, Particleboard, Plywood	00000000	000000


			1/2"	1 1/4"	1/2"	3 1/2"	2	CNC Machine	Wood, Particleboard, Plywood	00000000	000000
			1/2"	1 1/2"	1/2"	3 1/2"	3	Hand Router, Router Table, CNC Machine	Wood, Particleboard, Plywood	000000000	000000
			1/2"	1 5/8"	1/2"	3 1/2"	2	CNC Machine	Wood, Particleboard, Plywood	00000000	000000
			1/2"	2"	1/2"	4"	3	Hand Router, Router Table, CNC Machine	Wood, Particleboard, Plywood	000000000	000000
			1/2"	2 1/8"	1/2"	4"	2	CNC Machine	Wood, Particleboard, Plywood	00000000	000000

Ceramic-Coated Carbide

Square Cut

Style—Plunge-Cut,

Spiral Flute

Ceramic-coated carbide bits are harder and protected from high heat, making them last about 2.5 times longer than uncoated bits.

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.

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







	Spiral Flutes with Upward Chip Removal

	1/8"	1/2"	1/4"	2"	3	Hand Router, Router Table, CNC Machine	Wood, Particleboard, Plywood	000000000	000000


	1/4"	3/4"	1/4"	2 1/2"	3	Hand Router, Router Table, CNC Machine	Wood, Particleboard, Plywood	000000000	00000
	1/2"	1 1/2"	1/2"	3 1/2"	3	Hand Router, Router Table, CNC Machine	Wood, Particleboard, Plywood	000000000	000000




			Spiral Flutes with Downward Chip Removal

			1/8"	1/2"	1/4"	2"	3	Hand Router, Router Table, CNC Machine	Wood, Particleboard, Plywood	000000000	00000


			1/4"	3/4"	1/4"	2 1/2"	3	Hand Router, Router Table, CNC Machine	Wood, Particleboard, Plywood	000000000	00000
			1/2"	1 1/2"	1/2"	3 1/2"	3	Hand Router, Router Table, CNC Machine	Wood, Particleboard, Plywood	000000000	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 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.

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.

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







	Spiral Flutes with Upward Chip Removal

	1/8"	1 1/8"	1/4"	2 1/2"	2	CNC Machine	Foam	0000000	000000


	3/16"	1 5/8"	3/16"	4"	2	CNC Machine	Foam	0000000	00000
	1/4"	2 1/4"	1/4"	4"	2	CNC Machine	Foam	0000000	00000
	1/4"	3"	1/4"	6"	2	CNC Machine	Foam	00000000	000000
	3/8"	4"	3/8"	6"	2	CNC Machine	Foam	00000000	000000




			Spiral Flutes with Downward Chip Removal

			1/8"	1 1/16"	1/8"	3"	2	CNC Machine	Foam	0000000	00000


			1/4"	2 1/4"	1/4"	4"	2	CNC Machine	Foam	0000000	00000

Ceramic-Coated Carbide

Square Cut

Style—Plunge-Cut

Square Cut

Style—Plunge-Cut,

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. 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.

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—Plunge-Cut







	Spiral Flutes with Upward Chip Removal

	1/8"	1 1/8"	1/4"	2 1/2"	2	CNC Machine	Foam	00000000	000000


	1/4"	2 1/4"	1/4"	4"	2	CNC Machine	Foam	00000000	00000




			Spiral Flutes with Downward Chip Removal

			1/8"	1 1/8"	1/4"	2 1/2"	2	CNC Machine	Foam	00000000	00000


			1/4"	2 1/4"	1/4"	4"	2	CNC Machine	Foam	00000000	00000

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

Image of ProductInUse. Front orientation. Router Bits. Spiral Router Bits for Steel and Stainless Steel , Aluminum Titanium Nitride (AlTiN)-Coated Carbide.


Square Cut Style Spiral Flute 4 Flutes	Square Cut Style Spiral Flute 2 Flutes

Square Cut Style Spiral Flute 3 Flutes

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







	Spiral Flutes with Upward Chip Removal

	1/32"	1/16"	1/8"	1 1/2"	4	CNC Machine	Steel, Stainless Steel	00000000	000000


	1/16"	3/16"	1/8"	1 1/2"	4	CNC Machine	Steel, Stainless Steel	00000000	00000
	1/16"	3/16"	1/8"	1 1/2"	2	CNC Machine	Steel, Stainless Steel	00000000	00000
	1/8"	1/4"	1/8"	2"	2	CNC Machine	Steel, Stainless Steel	0000000	00000
	1/8"	3/8"	1/4"	1 1/2"	4	CNC Machine	Steel, Stainless Steel	00000000	00000
	1/8"	3/8"	1/4"	1 1/2"	3	CNC Machine	Steel, Stainless Steel	00000000	00000
	3/16"	3/8"	3/16"	2 1/2"	2	CNC Machine	Steel, Stainless Steel	0000000	00000
	3/16"	7/16"	1/4"	1 7/8"	3	CNC Machine	Steel, Stainless Steel	00000000	00000
	1/4"	3/8"	1/4"	2 1/2"	2	CNC Machine	Steel, Stainless Steel	0000000	00000
	1/4"	5/8"	1/4"	2 3/8"	4	CNC Machine	Steel, Stainless Steel	00000000	00000
	1/4"	5/8"	1/4"	2 3/8"	3	CNC Machine	Steel, Stainless Steel	00000000	00000


	1/4"	1 1/8"	1/4"	3"	4	CNC Machine	Steel, Stainless Steel	00000000	00000
	5/16"	1 1/8"	5/16"	3"	2	CNC Machine	Steel, Stainless Steel	00000000	00000
	3/8"	1/2"	3/8"	3"	2	CNC Machine	Steel, Stainless Steel	0000000	00000
	1/2"	3/4"	1/2"	3"	2	CNC Machine	Steel, Stainless Steel	00000000	00000

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

	1/8"	1/2"	1/4"	2"	2	CNC Machine	Wood, Particleboard, Plywood, Hard Plastic, Soft Plastic, Aluminum	0000000	000000


	3/16"	3/4"	1/4"	2"	2	CNC Machine	Wood, Particleboard, Plywood, Hard Plastic, Soft Plastic, Aluminum	0000000	00000
	1/4"	7/8"	1/4"	2 1/2"	2	CNC Machine	Wood, Particleboard, Plywood, Hard Plastic, Soft Plastic, Aluminum	0000000	00000
	3/8"	1 1/8"	3/8"	3"	2	CNC Machine	Wood, Particleboard, Plywood, Hard Plastic, Soft Plastic, Aluminum	0000000	00000
	1/2"	1 1/8"	1/2"	3"	2	CNC Machine	Wood, Particleboard, Plywood, Hard Plastic, Soft Plastic, Aluminum	0000000	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	Square Cut Style—Plunge-Cut


Square Cut Style Spiral Flute	Square Cut Style—Plunge-Cut, Roughed Spiral Flute

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

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.

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.

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







	Spiral Flutes with Upward Chip Removal

	1/4"	3/4"	1/4"	2 1/2"	8	Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	00000000	0000000


	1/4"	1"	1/4"	3"	8	Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	00000000	000000
	3/8"	1 1/8"	3/8"	3"	12	Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	00000000	000000
	3/8"	1 1/2"	3/8"	3"	12	Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	00000000	000000
	1/2"	1 1/2"	1/2"	4"	14	Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	00000000	000000
	1/2"	2"	1/2"	4"	14	Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	00000000	000000


	Square Cut Style—Plunge-Cut







					Roughed Spiral Flutes with Upward Chip Removal

					15/64"	3/4"	1/4"	2 1/2"	4	Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	00000000	000000


					1/4"	1/2"	1/4"	2 1/2"	4	Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	00000000	000000
					1/4"	3/4"	1/4"	2 1/2"	4	Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	00000000	000000
					1/4"	1"	1/4"	3"	4	Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	00000000	000000
					5/16"	15/16"	3/8"	3"	6	Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	00000000	000000
					23/64"	1 1/8"	3/8"	3"	6	Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	00000000	000000
					3/8"	3/4"	3/8"	3"	6	Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	00000000	000000
					3/8"	1 1/8"	3/8"	3"	6	Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	00000000	000000
					7/16"	1 5/16"	1/2"	3"	8	Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	00000000	000000
					31/64"	1 1/2"	1/2"	3"	8	Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	00000000	000000
					1/2"	1"	1/2"	3"	8	Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	00000000	000000


					1/2"	1 1/2"	1/2"	3"	8	Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	00000000	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 Carbide


Square Cut Style	Square Cut Style—Plunge-Cut


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.

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.

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.

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

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







				Spiral Flutes with Upward Chip Removal

				1/8"	1/2"	1/8"	2"	2	CNC Machine	Hard Plastic, Soft Plastic	0000000	000000


				1/8"	1/2"	1/8"	2"	1	CNC Machine	Hard Plastic, Soft Plastic	0000000	00000
				1/8"	1/2"	1/4"	2"	2	CNC Machine	Hard Plastic, Soft Plastic	0000000	00000
				1/8"	3/4"	1/4"	2 1/2"	2	CNC Machine	Hard Plastic, Soft Plastic	0000000	00000
				3/16"	5/8"	1/4"	2 1/2"	2	CNC Machine	Hard Plastic, Soft Plastic	0000000	00000
				1/4"	3/8"	1/4"	2 1/2"	2	CNC Machine	Hard Plastic, Soft Plastic	0000000	00000
				1/4"	3/8"	1/4"	3"	3	Hand Router, Router Table, CNC Machine	Hard Plastic, Soft Plastic	0000000	00000
				1/4"	3/4"	1/4"	2 1/2"	2	CNC Machine	Hard Plastic, Soft Plastic	0000000	00000
				1/4"	7/8"	1/4"	3"	2	CNC Machine	Hard Plastic, Soft Plastic	0000000	00000
				1/4"	7/8"	1/4"	3"	3	Hand Router, Router Table, CNC Machine	Hard Plastic, Soft Plastic	0000000	00000
				1/4"	1"	1/4"	2 1/2"	2	CNC Machine	Hard Plastic, Soft Plastic	0000000	00000


				1/4"	1 1/4"	1/4"	3"	2	CNC Machine	Hard Plastic, Soft Plastic	0000000	00000
				3/8"	5/8"	3/8"	3"	3	Hand Router, Router Table, CNC Machine	Hard Plastic, Soft Plastic	0000000	00000
				3/8"	1 1/8"	3/8"	3"	2	CNC Machine	Hard Plastic, Soft Plastic	0000000	00000
				1/2"	1 1/8"	1/2"	3 1/2"	3	Hand Router, Router Table, CNC Machine	Hard Plastic, Soft Plastic	0000000	000000




						Spiral Flutes with Downward Chip Removal

						1/8"	1/2"	1/8"	2"	2	CNC Machine	Hard Plastic, Soft Plastic	0000000	00000


						1/8"	1/2"	1/8"	2"	1	CNC Machine	Hard Plastic, Soft Plastic	0000000	00000
						1/8"	1/2"	1/4"	2"	2	CNC Machine	Hard Plastic, Soft Plastic	0000000	00000
						1/4"	3/8"	1/4"	2 1/2"	2	CNC Machine	Hard Plastic, Soft Plastic	0000000	00000
						1/4"	3/8"	1/4"	3"	3	Hand Router, Router Table, CNC Machine	Hard Plastic, Soft Plastic	0000000	00000
						1/4"	3/4"	1/4"	2 1/2"	2	CNC Machine	Hard Plastic, Soft Plastic	0000000	00000
						1/4"	7/8"	1/4"	3"	3	Hand Router, Router Table, CNC Machine	Hard Plastic, Soft Plastic	0000000	00000
						3/8"	5/8"	3/8"	3"	3	Hand Router, Router Table, CNC Machine	Hard Plastic, Soft Plastic	0000000	00000
						1/2"	1 1/8"	1/2"	3 1/2"	3	Hand Router, Router Table, CNC Machine	Hard Plastic, Soft Plastic	0000000	000000


						Square Cut Style—Plunge-Cut







										Spiral Flutes with Upward Chip Removal

										1/16"	1/4"	1/4"	2"	1	CNC Machine	Hard Plastic, Soft Plastic	0000000	00000


										3/32"	1/4"	1/8"	2"	1	CNC Machine	Hard Plastic, Soft Plastic	0000000	00000
										5/32"	9/16"	1/4"	2"	1	CNC Machine	Hard Plastic, Soft Plastic	0000000	00000
										3/16"	5/8"	1/4"	2"	1	CNC Machine	Hard Plastic, Soft Plastic	0000000	00000
										7/32"	3/4"	1/4"	2 1/2"	1	CNC Machine	Hard Plastic, Soft Plastic	0000000	00000
3/8"										5/8"	3/8"	2 1/2"	1	CNC Machine	Hard Plastic, Soft Plastic	0000000	00000
1/2"	1 1/4"									1/2"	3"	1	CNC Machine	Hard Plastic, Soft Plastic	0000000	000000




		Spiral Flutes with Downward Chip Removal

		1/16"	1/4"							1/8"	2"	1	CNC Machine	Hard Plastic, Soft Plastic	0000000	00000


		5/32"	9/16"							1/4"	2"	1	CNC Machine	Hard Plastic, Soft Plastic	0000000	00000
		3/16"	5/8"							1/4"	2"	1	CNC Machine	Hard Plastic, Soft Plastic	0000000	00000

Ceramic-Coated Carbide

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.

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







	Spiral Flutes with Upward Chip Removal

	1/16"	1/4"	1/8"	2"	1	Hand Router, Router Table, CNC Machine	Hard Plastic, Soft Plastic	0000000	000000


	1/8"	1/4"	1/4"	2"	1	Hand Router, Router Table, CNC Machine	Hard Plastic, Soft Plastic	0000000	00000
	1/8"	3/4"	1/8"	2"	1	Hand Router, Router Table, CNC Machine	Hard Plastic, Soft Plastic	0000000	00000
	1/4"	3/8"	1/4"	2"	1	Hand Router, Router Table, CNC Machine	Hard Plastic, Soft Plastic	0000000	00000
	1/4"	7/8"	1/4"	3"	3	Hand Router, Router Table, CNC Machine	Hard Plastic, Soft Plastic	0000000	00000
	1/4"	1"	1/4"	3"	2	Hand Router, Router Table, CNC Machine	Hard Plastic, Soft Plastic	0000000	00000
	3/8"	1 1/8"	3/8"	3"	3	Hand Router, Router Table, CNC Machine	Hard Plastic, Soft Plastic	0000000	000000
	1/2"	1 1/8"	1/2"	3 1/2"	3	Hand Router, Router Table, CNC Machine	Hard Plastic, Soft Plastic	0000000	000000
	1/2"	1 5/8"	1/2"	4"	3	Hand Router, Router Table, CNC Machine	Hard Plastic, Soft Plastic	0000000	000000




			Spiral Flutes with Downward Chip Removal

			1/16"	1/4"	1/8"	2"	1	Hand Router, Router Table, CNC Machine	Hard Plastic, Soft Plastic	0000000	00000


			1/8"	1/2"	1/4"	2"	1	Hand Router, Router Table, CNC Machine	Hard Plastic, Soft Plastic	0000000	00000
			1/4"	7/8"	1/4"	3"	3	Hand Router, Router Table, CNC Machine	Hard Plastic, Soft Plastic	0000000	00000
			1/4"	1"	1/4"	3"	2	Hand Router, Router Table, CNC Machine	Hard Plastic, Soft Plastic	0000000	00000
			3/8"	1 1/8"	3/8"	3"	3	Hand Router, Router Table, CNC Machine	Hard Plastic, Soft Plastic	0000000	000000
			1/2"	1 1/8"	1/2"	3 1/2"	3	Hand Router, Router Table, CNC Machine	Hard Plastic, Soft Plastic	0000000	000000
			1/2"	1 5/8"	1/2"	4"	3	Hand Router, Router Table, CNC Machine	Hard Plastic, Soft Plastic	0000000	000000

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 High-Speed Steel


Square Cut Style—Plunge-Cut	Square Cut Style—Plunge-Cut, Straight Flute

High-speed steel bits can be used with hand routers, router tables, and CNC machines.

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

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

	1/8"	1/2"	1/4"	2"	1	Hand Router, Router Table, CNC Machine	Aluminum	0000000	000000


	3/16"	5/8"	1/4"	2 1/2"	1	Hand Router, Router Table, CNC Machine	Aluminum	0000000	00000
	1/4"	3/4"	1/4"	2 1/2"	1	Hand Router, Router Table, CNC Machine	Aluminum	0000000	00000
	1/2"	1"	1/2"	3"	1	Hand Router, Router Table, CNC Machine	Aluminum	0000000	00000

Uncoated Carbide

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

	1/8"	1/2"	1/4"	2"	1	CNC Machine	Aluminum	0000000	000000


	3/16"	5/8"	1/4"	2"	1	CNC Machine	Aluminum	0000000	00000
	1/4"	3/4"	1/4"	2 1/2"	1	CNC Machine	Aluminum	0000000	00000
	1/4"	1"	1/4"	3"	1	CNC Machine	Aluminum	0000000	00000
	5/16"	13/16"	3/8"	2 1/2"	1	CNC Machine	Aluminum	0000000	00000
	3/8"	7/8"	3/8"	2 1/2"	1	CNC Machine	Aluminum	0000000	00000
	7/16"	1"	1/2"	3"	1	CNC Machine	Aluminum	0000000	000000
	1/2"	1"	1/2"	3"	1	CNC Machine	Aluminum	0000000	000000




			Spiral Flutes with Upward Chip Removal

			1/8"	1/4"	1/8"	1 1/2"	1	CNC Machine	Aluminum	0000000	00000


			1/8"	1/2"	1/4"	2"	1	CNC Machine	Aluminum	0000000	00000
			3/16"	3/8"	1/4"	2"	1	CNC Machine	Aluminum	0000000	00000
			3/16"	5/8"	1/4"	2"	1	CNC Machine	Aluminum	0000000	00000
			1/4"	3/8"	1/4"	2"	1	CNC Machine	Aluminum	0000000	00000
			1/4"	1 1/4"	1/4"	3"	1	CNC Machine	Aluminum	0000000	00000
			3/8"	3/4"	3/8"	3"	1	CNC Machine	Aluminum	0000000	00000
			3/8"	1 1/8"	3/8"	3"	1	CNC Machine	Aluminum	0000000	000000




					Spiral Flutes with Downward Chip Removal

					1/8"	1/4"	1/8"	1 1/2"	1	CNC Machine	Aluminum	0000000	00000


					1/8"	1/4"	1/4"	2"	1	CNC Machine	Aluminum	0000000	00000
					3/16"	3/8"	1/4"	2"	1	CNC Machine	Aluminum	0000000	00000
					3/16"	5/8"	1/4"	2"	1	CNC Machine	Aluminum	0000000	00000
					1/4"	3/8"	1/4"	2"	1	CNC Machine	Aluminum	0000000	00000
					1/4"	1 1/4"	1/4"	3"	1	CNC Machine	Aluminum	0000000	00000
					3/8"	1/8"	3/8"	3"	1	CNC Machine	Aluminum	0000000	000000
					3/8"	3/4"	3/8"	3"	1	CNC Machine	Aluminum	0000000	000000

Zirconium Nitride (ZrN)-Coated Carbide

Square Cut

Style—Plunge-Cut

Square Cut

Style—Plunge-Cut,

Spiral Flute

Zirconium-nitride (ZrN) coated carbide bits have a smoother cutting edge than uncoated bits, so they generate less friction when cutting. This helps keep temperatures down when cutting at high speeds, minimizing material buildup and extending the life of the bit. 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.

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

2 Flutes—Bits with two flutes produce a smoother finish.

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







	Spiral Flutes with Upward Chip Removal

	1/8"	1/4"	1/4"	2"	2	CNC Machine	Aluminum	00000000	000000


	1/8"	1/2"	1/4"	2"	2	CNC Machine	Aluminum	00000000	00000
	3/16"	1/2"	1/4"	2"	2	CNC Machine	Aluminum	00000000	00000
	1/4"	5/8"	1/4"	2"	2	CNC Machine	Aluminum	00000000	00000

Drill/Mill Router Bits

Drill, mill, and trim with the same bit. The unique shape on these bits was originally used for aircraft panels. They have a pointed end and spiral flutes, like a drill bit, making downward plunge cuts easier than with square-cut and straight-flute bits. The spiral flutes also leave a smoother finish. The flutes lift chips up from the workpiece for applications that require a clean finish on the bottom edge of the cut. Securely clamp your material before routing to prevent lifting.

These bits are made of high-speed steel for general purpose use. They can be used with hand tools, router tables, and CNC machines. These bits do not have a pilot, so guide your router along a straight edge when hand routing to make accurate cuts.

Uncoated High-Speed Steel

Drill/Mill Cut

Style—Plunge-Cut

4 Flutes—Bits with four flutes produce a smoother finish than three-flute bits.

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







	Spiral Flutes with Upward Chip Removal

	3/32"	13/16"	3/32"	2"	3	Hand Router, Router Table, CNC Machine	Cast Iron, Copper, Steel, Stainless Steel, Titanium	00000000	000000


	1/8"	7/8"	1/8"	2 1/4"	3	Hand Router, Router Table, CNC Machine	Cast Iron, Copper, Steel, Stainless Steel, Titanium	00000000	00000
	5/32"	1 1/16"	3/16"	2 1/2"	3	Hand Router, Router Table, CNC Machine	Cast Iron, Copper, Steel, Stainless Steel, Titanium	00000000	00000
	7/32"	1 1/4"	1/4"	2 3/4"	4	Hand Router, Router Table, CNC Machine	Cast Iron, Copper, Steel, Stainless Steel, Titanium	00000000	00000