0.04" Head Diameter Grinding Bits

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System of Measurement

Shape

Grit

For Use On

Shank Diameter

Abrasive Material

Grit Rating

Surface Texture

DFARS Specialty Metals

Head Length

Material

For Use With

Grinders for Bits and Burs

Export Control Classification Number (ECCN)

EAR99

Length

2 1/4"

Maximum Rotation Speed

Performance

REACH

RoHS

Rotation Speed

30,000 rpm to 99,999 rpm

100,000 rpm or greater

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

Overall Length

Color

3 Products

Long-Life Grinding Bits for Nonmetals

Style

The diamond abrasive in these bits is extremely hard and lasts longer than tungsten carbide. For longer tool life and improved finish, use a water- or oil-soluble mist or coolant.

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

		Head
	Style	Dia.	Lg.	Max. Rotation Speed, rpm	Abrasive Material	Overall Lg.	Grit (Surface Texture)		Each
For Carbide, Ceramics, and Glass







				1/8" Diameter Shank

				1	0.04"	0.08"	100,000	Diamond	2 1/4"	220 (Extra Smooth) Silver	4376A12	000000


				1	0.04"	0.19"	96,000	Diamond	2 1/4"	120 (Smooth) Silver	4490A76	00000

Long-Life Grinding Bits for Metals

Similar to diamond, boron nitride is harder than aluminum oxide and lasts longer. Bits are also known as jig grinding pins and mandrels.

Head diameter is measured at the widest point.

Cylinder

	Head
	Dia.	Lg.	Max. Rotation Speed, rpm	Abrasive Material	Overall Lg.	Grit (Surface Texture)		Each
For Steel, Stainless Steel, and Iron







				1/8" Diameter Shank

				0.04"	0.08"	100,000	Boron Nitride	2 1/4"	220 (Extra Smooth) Silver	4338A11	000000