Rotary Rasps | McMaster-Carr

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

REACH

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DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

EAR99

Maximum Rotation Speed

Rotation Speed

Diameter

Voltage

Airflow @ Static Pressure

6,900 ft³/min @ 0 in. H₂O

9,350 ft³/min @ 0 in. H₂O

3,900 ft³/min @ 1/2 in. H₂O

5,900 ft³/min @ 1/2 in. H₂O

Base Width

Current

Blade Diameter

Overall Height

Overall Diameter

Hazardous Location Rating

NEC Class I Divisions 1, 2 Groups C, D

NEC Class II Divisions 1, 2 Groups E, F, G

Volume (Sound) @ Distance

27 Products

Grinding Bits for Nonmetals


Style 1	Style 2	Style 3	Style 4	Style 5	Style 6	Style 7	Style 8

Almost as hard as diamond, these tungsten carbide bits cut through nonmetals without generating heat.

Bits are also known as mounted points and die grinder bits. Head diameter is measured at the widest point.

Caution: As bit shank is exposed beyond _1/2", maximum safe rpm decreases significantly. Refer to ANSI standard B7.1. Use only accessories that have a greater rpm rating than the maximum speed of the grinder you choose.

Cylinder


Style 1	Style 6

		Head
	Style	Dia.	Lg.	Max. Rotation Speed, rpm	Abrasive Material	Shank Lg.	Grit (Surface Texture)		Each
For Composites, Fiberglass, Plaster, Plastic, Rubber, and Wood







				1/8" Diameter Shank

				1	5/32"	13/16"	20,000	Tungsten Carbide	7/8"	36 (Rough) Bronze	4931A31	000000


				1	5/32"	27/32"	20,000	Tungsten Carbide	7/8"	80 (Rough) Bronze	4931A53	00000
				1	7/16"	21/32"	20,000	Tungsten Carbide	7/8"	36 (Rough) Bronze	4931A35	00000
				1	7/16"	21/32"	20,000	Tungsten Carbide	7/8"	80 (Rough) Bronze	4931A55	00000
				6	25/32"	1/4"	20,000	Tungsten Carbide	7/8"	36 (Rough) Bronze	4931A43	00000
				6	25/32"	1/4"	20,000	Tungsten Carbide	7/8"	80 (Rough) Bronze	4931A45	00000




						1/4" Diameter Shank

						1	1/8"	1 1/4"	23,000	Tungsten Carbide	1"	36 (Rough) Bronze	4437A27	00000


						1	1/4"	1 1/2"	23,000	Tungsten Carbide	1"	36 (Rough) Bronze	4437A21	00000
						1	5/8"	1"	23,000	Tungsten Carbide	1"	36 (Rough) Bronze	4437A25	00000

Barrel

Style

		Head
	Style	Dia.	Lg.	Max. Rotation Speed, rpm	Abrasive Material	Shank Lg.	Grit (Surface Texture)		Each
For Composites, Fiberglass, Plaster, Plastic, Rubber, and Wood







				1/8" Diameter Shank

				2	9/32"	21/32"	20,000	Tungsten Carbide	7/8"	36 (Rough) Bronze	4931A49	000000


				2	9/32"	21/32"	20,000	Tungsten Carbide	7/8"	80 (Rough) Bronze	4931A47	00000

Cone


Style 3	Style 4	Style 8

		Head
	Style	Dia.	Lg.	Max. Rotation Speed, rpm	Abrasive Material	Shank Lg.	Grit (Surface Texture)		Each
For Composites, Fiberglass, Plaster, Plastic, Rubber, and Wood







				1/8" Diameter Shank

				3	5/16"	21/32"	20,000	Tungsten Carbide	7/8"	80 (Rough) Bronze	4931A59	000000


				3	5/16"	11/16"	20,000	Tungsten Carbide	7/8"	36 (Rough) Bronze	4931A33	00000
				3	5/8"	21/32"	20,000	Tungsten Carbide	7/8"	80 (Rough) Bronze	4931A51	00000
				3	5/8"	11/16"	20,000	Tungsten Carbide	7/8"	36 (Rough) Bronze	4931A39	00000
				4	1/4"	7/16"	20,000	Tungsten Carbide	7/8"	120 (Rough) Bronze	4931A57	00000




						1/4" Diameter Shank

						8	3/4"	1"	23,000	Tungsten Carbide	1"	36 (Rough) Bronze	4437A29	00000

Taper

Style

		Head
	Style	Dia.	Lg.	Max. Rotation Speed, rpm	Abrasive Material	Shank Lg.	Grit (Surface Texture)		Each
For Composites, Fiberglass, Plaster, Plastic, Rubber, and Wood







				1/4" Diameter Shank

				7	1/8"	1 1/2"	23,000	Tungsten Carbide	1"	36 (Rough) Bronze	4437A23	000000

Ball

Style 5

		Head
	Style	Dia.	Lg.	Max. Rotation Speed, rpm	Abrasive Material	Shank Lg.	Grit (Surface Texture)		Each
For Composites, Fiberglass, Plaster, Plastic, Rubber, and Wood







				1/8" Diameter Shank

				5	13/32"	13/32"	20,000	Tungsten Carbide	7/8"	36 (Rough) Bronze	4931A37	000000


				5	13/32"	13/32"	20,000	Tungsten Carbide	7/8"	80 (Rough) Bronze	4931A41	00000




						1/4" Diameter Shank

						5	3/4"	3/4"	23,000	Tungsten Carbide	1"	36 (Rough) Bronze	4437A28	00000

Grinding Bit Sets for Nonmetals

Best for grinding composites, fiberglass, plaster, plastic, rubber, and wood without generating heat, these sets include a selection of our most popular tungsten carbide bits. The bits are also known as mounted points and die grinder bits.

	Shank Lg.	Grit (Surface Texture)		Each
For Composites, Fiberglass, Plaster, Plastic, Rubber, and Wood







	1/8" Diameter Shank

	7	1 1/4" Dia. Cutoff Wheel, Barrel Grinding Bit, Disc Grinding Bit, Two Cylindrical Bits, Two Cone Bits	Tungsten Carbide	7/8"	36 (Rough) Bronze	4764N12	0000000


	7	1 1/4" Dia. Cutoff Wheel, Barrel Grinding Bit, Disc Grinding Bit, Two Cylindrical Bits, Two Cone Bits	Tungsten Carbide	7/8"	50 (Rough) Bronze	4764N11	000000

Hazardous Location Upblast Roof-Mount Exhaust Fans

With a UL-listed motor, these fans can be used in hazardous environments with combustible gases and dust to draw stagnant and humid air out through your roof, forcing it up and away from its surface.

Direct Drive

Image of Product. Front orientation. Exhaust Fans. Hazardous Location Upblast Roof-Mount Exhaust Fans.

Direct-drive fans have fewer moving parts than belt-drive fans for less maintenance.

	Exhaust Fans														Mounting Bases
						Overall
	Blade Dia.	Airflow @ SP	Volume (Sound) @ Distance	Motor Speed, rpm	Power, hp	Dia.	Ht.	Base Wd.	Wt., lb.	Max. Ambient Temp., ° F	Housing Material	Hazardous Location Rating		Each		Each
Totally Enclosed Motor Enclosure







				120/240V AC, Single Phase—Hardwire

				24"	3,900 ft³/min @ 1/2 in. H₂O 6,900 ft³/min @ 0 in. H₂O	75 dBA @ 5 ft.	1,150	3/4	33"	25"	36"	340	100	Steel	NEC Class I Divisions 1, 2 Groups C, D; NEC Class II Divisions 1, 2 Groups E, F, G	4746N11	000000000	2230K66	0000000


				30"	5,900 ft³/min @ 1/2 in. H₂O 9,350 ft³/min @ 0 in. H₂O	72 dBA @ 5 ft.	1,150	1	39"	28"	42"	370	100	Steel	NEC Class I Divisions 1, 2 Groups C, D; NEC Class II Divisions 1, 2 Groups E, F, G	4746N12	00000000	2230K45	000000