Diamond-Coated Router Bits

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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 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.

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	Mfr.		Each
Square Cut Style







				Straight Flutes

				1/4"	3/4"	1/4"	2 1/2"	10	CNC Machine	Fiber-Reinforced Plastic, Composite	Guhring	6582N11	0000000


				3/8"	1"	3/8"	3"	14	CNC Machine	Fiber-Reinforced Plastic, Composite	Guhring	6582N12	000000
				1/2"	1 1/4"	1/2"	3 1/2"	15	CNC Machine	Fiber-Reinforced Plastic, Composite	Guhring	6582N13	000000
				5/8"	1 5/8"	5/8"	4"	15	CNC Machine	Fiber-Reinforced Plastic, Composite	Guhring	6582N14	000000
				4 mm	10 mm	6 mm	57 mm	6	CNC Machine	Fiber-Reinforced Plastic, Composite	Guhring	6582N19	000000
				6 mm	15 mm	6 mm	65 mm	8	CNC Machine	Fiber-Reinforced Plastic, Composite	Guhring	6582N21	000000
				8 mm	20 mm	8 mm	75 mm	10	CNC Machine	Fiber-Reinforced Plastic, Composite	Guhring	6582N22	000000
				10 mm	25 mm	10 mm	80 mm	12	CNC Machine	Fiber-Reinforced Plastic, Composite	Guhring	6582N23	000000
				12 mm	32 mm	12 mm	93 mm	14	CNC Machine	Fiber-Reinforced Plastic, Composite	Guhring	6582N24	000000




						Spiral Flutes with Upward Chip Removal

						1/4"	3/4"	1/4"	2 1/2"	8	Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	OSG USA	6582N104	000000


						1/4"	1"	1/4"	3"	8	Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	OSG USA	6582N105	000000
						3/8"	1 1/8"	3/8"	3"	12	Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	OSG USA	6582N106	000000
						3/8"	1 1/2"	3/8"	3"	12	Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	OSG USA	6582N107	000000
						1/2"	1 1/2"	1/2"	4"	14	Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	OSG USA	6582N108	000000
						1/2"	2"	1/2"	4"	14	Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	OSG USA	6582N109	000000




								Diamond-Pattern Flutes

								1/8"	1/4"	1/8"	1 1/2"	6	Router Table, CNC Machine	Carbon Fiber, Composite	OSG USA	6582N67	00000


								3/16"	3/8"	3/16"	2"	6	Router Table, CNC Machine	Carbon Fiber, Composite	OSG USA	6582N68	000000
								1/4"	1/2"	1/4"	2 1/2"	8	Router Table, CNC Machine	Carbon Fiber, Composite	OSG USA	6582N69	000000
								1/4"	3/4"	1/4"	2 1/2"	8	Router Table, CNC Machine	Carbon Fiber, Composite	OSG USA	6582N71	000000
								1/4"	3/4"	1/4"	2 1/2"	10	Router Table, CNC Machine	Carbon Fiber, Composite	OSG USA	6582N72	000000
								1/4"	3/4"	1/4"	2 1/2"	12	Router Table, CNC Machine	Carbon Fiber, Composite	OSG USA	6582N73	000000
								1/4"	1"	1/4"	3"	8	Router Table, CNC Machine	Carbon Fiber, Composite	OSG USA	6582N76	000000
								1/4"	1"	1/4"	3"	10	Router Table, CNC Machine	Carbon Fiber, Composite	OSG USA	6582N77	000000
								1/4"	1"	1/4"	3"	12	Router Table, CNC Machine	Carbon Fiber, Composite	OSG USA	6582N78	000000
								1/4"	1 1/4"	1/4"	4"	8	Router Table, CNC Machine	Carbon Fiber, Composite	OSG USA	6582N79	000000
								3/8"	3/4"	3/8"	2 1/2"	12	Router Table, CNC Machine	Carbon Fiber, Composite	OSG USA	6582N81	000000


								3/8"	1 1/8"	3/8"	3"	12	Router Table, CNC Machine	Carbon Fiber, Composite	OSG USA	6582N83	000000
								3/8"	1 1/2"	3/8"	4"	12	Router Table, CNC Machine	Carbon Fiber, Composite	OSG USA	6582N84	000000
								1/2"	1"	1/2"	3"	14	Router Table, CNC Machine	Carbon Fiber, Composite	OSG USA	6582N86	000000
								1/2"	2"	1/2"	4"	16	Router Table, CNC Machine	Carbon Fiber, Composite	OSG USA	6582N87	000000


								Drill/Mill Cut Style—Plunge-Cut







		Straight Flutes

		1/4"	3/4"							1/4"	2 1/2"	10	CNC Machine	Fiber-Reinforced Plastic, Composite	Guhring	6582N15	000000


		3/8"	1"							3/8"	3"	14	CNC Machine	Fiber-Reinforced Plastic, Composite	Guhring	6582N16	000000
		1/2"	1 1/4"							1/2"	3 1/2"	15	CNC Machine	Fiber-Reinforced Plastic, Composite	Guhring	6582N17	000000
		5/8"	1 5/8"							5/8"	4"	15	CNC Machine	Fiber-Reinforced Plastic, Composite	Guhring	6582N18	000000
		4 mm	12 mm							4 mm	55 mm	6	CNC Machine	Fiber-Reinforced Plastic, Composite	Guhring	6582N32	000000
		6 mm	18 mm							6 mm	65 mm	8	CNC Machine	Fiber-Reinforced Plastic, Composite	Guhring	6582N33	000000
		8 mm	24 mm							8 mm	75 mm	10	CNC Machine	Fiber-Reinforced Plastic, Composite	Guhring	6582N34	000000
		10 mm	30 mm							10 mm	80 mm	12	CNC Machine	Fiber-Reinforced Plastic, Composite	Guhring	6582N35	000000
		12 mm	36 mm							12 mm	93 mm	14	CNC Machine	Fiber-Reinforced Plastic, Composite	Guhring	6582N36	000000
		16 mm	48 mm							16 mm	108 mm	14	CNC Machine	Fiber-Reinforced Plastic, Composite	Guhring	6582N37	000000




				Diamond-Pattern Flutes

				1/4"	1"					1/4"	3"	8	Router Table, CNC Machine	Carbon Fiber, Composite	OSG USA	6582N99	000000


				1/4"	1"					1/4"	3"	12	Router Table, CNC Machine	Carbon Fiber, Composite	OSG USA	6582N101	000000
				3/8"	1 1/4"					3/8"	3"	12	Router Table, CNC Machine	Carbon Fiber, Composite	OSG USA	6582N102	000000
				1/2"	1"					1/2"	3"	14	Router Table, CNC Machine	Carbon Fiber, Composite	OSG USA	6582N103	000000


				Square Cut Style—Plunge-Cut







										Straight Flutes

										4 mm	10 mm	6 mm	57 mm	6	CNC Machine	Fiber-Reinforced Plastic, Composite	Guhring	6582N25	000000


										6 mm	15 mm	6 mm	65 mm	8	CNC Machine	Fiber-Reinforced Plastic, Composite	Guhring	6582N26	000000
										8 mm	20 mm	8 mm	75 mm	10	CNC Machine	Fiber-Reinforced Plastic, Composite	Guhring	6582N27	000000
										10 mm	25 mm	10 mm	80 mm	12	CNC Machine	Fiber-Reinforced Plastic, Composite	Guhring	6582N28	000000
										12 mm	32 mm	12 mm	93 mm	14	CNC Machine	Fiber-Reinforced Plastic, Composite	Guhring	6582N29	000000
										16 mm	34 mm	16 mm	108 mm	14	CNC Machine	Fiber-Reinforced Plastic, Composite	Guhring	6582N31	000000




												Diamond-Pattern Flutes

												1/8"	3/8"	1/8"	1 1/2"	6	Router Table, CNC Machine	Carbon Fiber, Composite	OSG USA	6582N88	00000


												1/8"	1/2"	1/8"	1 1/2"	8	Router Table, CNC Machine	Carbon Fiber, Composite	OSG USA	6582N89	00000
												3/16"	9/16"	3/16"	2"	6	Router Table, CNC Machine	Carbon Fiber, Composite	OSG USA	6582N91	000000
												3/16"	3/4"	3/16"	2"	8	Router Table, CNC Machine	Carbon Fiber, Composite	OSG USA	6582N92	000000
												1/4"	3/4"	1/4"	2 1/2"	10	Router Table, CNC Machine	Carbon Fiber, Composite	OSG USA	6582N93	000000
												1/4"	1"	1/4"	3"	10	Router Table, CNC Machine	Carbon Fiber, Composite	OSG USA	6582N94	000000
								5/16"				1"	5/16"	2 1/2"	10	Router Table, CNC Machine	Carbon Fiber, Composite	OSG USA	6582N95	000000
								3/8"	1 1/8"			3/8"	3"	12	Router Table, CNC Machine	Carbon Fiber, Composite	OSG USA	6582N96	000000
3/8"								1 1/2"	3/8"			4"	12	Router Table, CNC Machine	Carbon Fiber, Composite	OSG USA	6582N97	000000
1/2"	1"							1/2"	3"			14	Router Table, CNC Machine	Carbon Fiber, Composite	OSG USA	6582N98	000000




								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	OSG USA	6582N111	000000


								1/4"	1/2"			1/4"	2 1/2"	4	Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	OSG USA	6582N112	000000
								1/4"	3/4"			1/4"	2 1/2"	4	Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	OSG USA	6582N113	000000
								1/4"	1"			1/4"	3"	4	Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	OSG USA	6582N114	000000
								5/16"	15/16"			3/8"	3"	6	Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	OSG USA	6582N115	000000
								23/64"	1 1/8"			3/8"	3"	6	Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	OSG USA	6582N116	000000
								3/8"	3/4"			3/8"	3"	6	Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	OSG USA	6582N117	000000
								3/8"	1 1/8"			3/8"	3"	6	Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	OSG USA	6582N118	000000
		7/16"						1 5/16"	1/2"			3"	8	Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	OSG USA	6582N119	000000
		31/64"	1 1/2"					1/2"	3"			8	Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	OSG USA	6582N121	000000
		1/2"	1"					1/2"	3"			8	Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	OSG USA	6582N122	000000


		1/2"	1 1/2"					1/2"	3"			8	Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	OSG USA	6582N123	000000




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

								1/4"	3/4"			1/4"	3"	4	Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	OSG USA	6582N124	000000


				3/8"	3/4"			3/8"	3"			4	Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	OSG USA	6582N125	000000
				3/8"	2"			3/8"	4"			4	Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	OSG USA	6582N126	000000
				1/2"	1"			1/2"	3"			4	Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	OSG USA	6582N127	000000
				1/2"	2"	1/2"		4"	4			Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	OSG USA	6582N128	000000




						60° Compression Spiral Flutes with Upward and Downward Chip Removal

						1/4"	3/4"	1/4"	3"			2	Router Table, CNC Machine	Carbon Fiber, Fiber-Reinforced Plastic, Fiberglass, Composite	OSG USA	6582N129	000000


						3/8"	3/4"	3/8"	3"			2	Router Table, CNC Machine	Carbon Fiber, Fiber-Reinforced Plastic, Fiberglass, Composite	OSG USA	6582N131	000000
						3/8"	2"	3/8"	4"			2	Router Table, CNC Machine	Carbon Fiber, Fiber-Reinforced Plastic, Fiberglass, Composite	OSG USA	6582N132	000000
						1/2"	1"	1/2"	3"			2	Router Table, CNC Machine	Carbon Fiber, Fiber-Reinforced Plastic, Fiberglass, Composite	OSG USA	6582N133	000000
						1/2"	2"	1/2"	4"			2	Router Table, CNC Machine	Carbon Fiber, Fiber-Reinforced Plastic, Fiberglass, Composite	OSG USA	6582N134	000000




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

								1/8"	9/16"	1/8"	1 1/2"	4	Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	OSG USA	6582N135	00000


								1/4"	3/4"	1/4"	2 1/2"	4	Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	OSG USA	6582N136	000000
								3/8"	7/8"	3/8"	3"	4	Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	OSG USA	6582N137	000000
								1/2"	1 1/2"	1/2"	3"	4	Router Table, CNC Machine	Carbon Fiber, Fiberglass, Composite	OSG USA	6582N138	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	Mfr.		Each
Square Cut Style







	Fluteless

	1/8"	1/2"	1/8"	2"	Hand Router, Router Table, CNC Machine	Ceramic	A & M Instruments	8796A11	000000


	1/4"	3/4"	1/4"	2 1/2"	Hand Router, Router Table, CNC Machine	Ceramic	A & M Instruments	8796A12	00000
	3/8"	1"	3/8"	3"	Hand Router, Router Table, CNC Machine	Ceramic	A & M Instruments	8796A13	00000
	1/2"	1 1/2"	1/2"	4"	Hand Router, Router Table, CNC Machine	Ceramic	A & M Instruments	8796A14	000000
	3/4"	1"	1/2"	4"	Hand Router, Router Table, CNC Machine	Ceramic	A & M Instruments	8796A15	000000