Pointed Burs | McMaster-Carr

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For Use On

Shape

System of Measurement

Head Diameter

Shank Diameter

Tip Style

Head Length

Tooth Style

Heavy Duty Double Cut

Pointed

Single Cut

Single Cut with Chip Breaker

Overall Length

Maximum Rotation Speed

Grit Rating

Color

Shank Flexibility

Material

Sold As

DFARS Specialty Metals

Exempt

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Length

Rotation Speed

20,000 rpm to 29,999 rpm

For Use With

Grinders for Bits and Burs

Export Control Classification Number (ECCN)

REACH

RoHS

Tip Angle

21 Products

Burs for Wood and Rubber

Pointed teeth cut wood and rubber quickly without clogging.

Cylinder with Flat Tip

Flat cylinder burs are for straight edges and flat surfaces.

		Head						Pointed Tooth (Coarse Grit)		Pointed Tooth (Fine Grit)
	Shank Dia.	Dia.	Lg.	Overall Lg.	For Use On	Max. Rotation Speed, rpm	Color		Each		Each
Carbide



		1/4"	9/16"	3/4"	2"	Wood, Rubber	25,000	Red	4257A45	000000	———	0


		1/4"	9/16"	1 1/4"	2 1/2"	Wood, Rubber	25,000	Blue	———	0	4257A75	000000
		1/4"	13/16"	1 1/4"	2 1/2"	Wood, Rubber	10,000	Blue	———	0	4257A832	00000
		1/4"	13/16"	1 1/4"	2 1/2"	Wood, Rubber	10,000	Red	4257A831	00000	———	0

Cylinder with Round Tip

Round cylinder burs are for curved surfaces and slots and round-bottom holes and slots.

		Head						Pointed Tooth (Coarse Grit)		Pointed Tooth (Fine Grit)
	Shank Dia.	Dia.	Lg.	Overall Lg.	For Use On	Max. Rotation Speed, rpm	Color		Each		Each
Carbide



		1/4"	5/16"	1 3/4"	3"	Wood, Rubber	25,000	Blue	———	0	4257A79	000000


		1/4"	5/16"	1 3/4"	3"	Wood, Rubber	25,000	Red	4257A49	000000	———	0
		1/4"	9/16"	3/4"	2"	Wood, Rubber	25,000	Blue	———	0	4257A81	00000
		1/4"	9/16"	3/4"	2"	Wood, Rubber	25,000	Red	4257A51	00000	———	0
		1/4"	13/16"	1 1/4"	2 1/2"	Wood, Rubber	10,000	Blue	———	0	4257A772	00000
		1/4"	13/16"	1 1/4"	2 1/2"	Wood, Rubber	10,000	Red	4257A771	00000	———	0

Ball

Ball burs are for curved surfaces, round slots, and round-bottom holes.

		Head						Pointed Tooth (Coarse Grit)		Pointed Tooth (Fine Grit)
	Shank Dia.	Dia.	Lg.	Overall Lg.	For Use On	Max. Rotation Speed, rpm	Color		Each		Each
Carbide



		1/4"	9/16"	9/16"	1 3/4"	Wood, Rubber	25,000	Blue	———	0	4257A63	000000


		1/4"	9/16"	9/16"	1 3/4"	Wood, Rubber	25,000	Red	4257A33	000000	———	0
		1/4"	7/8"	7/8"	2 1/16"	Wood, Rubber	10,000	Red	4257A111	00000	———	0

Flame

Flame burs are for contoured surfaces, slots, and holes.

		Head						Pointed Tooth (Coarse Grit)		Pointed Tooth (Fine Grit)
	Shank Dia.	Dia.	Lg.	Overall Lg.	For Use On	Max. Rotation Speed, rpm	Color		Each		Each
Carbide



		1/4"	3/8"	3/4"	2 1/16"	Wood, Rubber	25,000	Blue	———	0	4257A89	000000


		1/4"	3/8"	3/4"	2 1/16"	Wood, Rubber	25,000	Red	4257A59	000000	———	0

Tapered Cone with Round Tip

Round tapered cone burs are for tapered holes and slots with rounded bottoms.

		Head							Pointed Tooth (Coarse Grit)		Pointed Tooth (Fine Grit)
	Shank Dia.	Dia.	Lg.	Tip Angle	Overall Lg.	For Use On	Max. Rotation Speed, rpm	Color		Each		Each
Carbide



		1/4"	5/16"	1 1/2"	15°	2 13/16"	Wood, Rubber	25,000	Blue	———	0	4257A68	000000


		1/4"	5/16"	1 1/2"	15°	2 13/16"	Wood, Rubber	25,000	Red	4257A38	000000	———	0
		1/4"	9/16"	1"	15°	2 3/8"	Wood, Rubber	25,000	Blue	———	0	4257A69	00000
		1/4"	9/16"	1"	15°	2 3/8"	Wood, Rubber	25,000	Red	4257A39	00000	———	0
		1/4"	13/16"	1 3/8"	15°	2 1/2"	Wood, Rubber	10,000	Blue	———	0	4257A912	00000
		1/4"	13/16"	1 3/8"	15°	2 1/2"	Wood, Rubber	10,000	Red	4257A911	00000	———	0