Type 12 Wheels | McMaster-Carr

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Grinding Wheel Designation

System of Measurement

Inch

Diameter

Arbor Hole Size

1 1/4"

Thickness

1/2"

For Use With

Toolroom Grinders

Grit

Material

Norton Abrasive Type

For Use On

Abrasive Material

Norton Abrasive Bond

REACH

RoHS

Rotation Speed

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

Yes

Maximum Rotation Speed

3,600 rpm

4,140 rpm

Surface Texture

Rough

Abrasive Bond Material

Vitrified Clay

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

EAR99

Grit Rating

Coarse

Arbor Hole

Unthreaded

Norton Abrasive Grade

Norton Abrasive Number

Color

3 Products

Shaped Norton Toolroom Grinding Wheels for Metals


Dish Grinding Wheel

The special shapes of these wheels provide more clearance than typical straight wheels.

Caution: Use only accessories that have a greater rpm rating than the maximum speed of the grinder you choose.

Norton 32A Abrasive—32A purple wheels are for medium to heavy material removal. They are aluminum oxide.

							Wheel
	Dia.	Thk.	Arbor Hole Size	Max. Rotation Speed, rpm	Abrasive Material	Abrasive Bond Material	Designation	Shape	Grit (Surface Texture)	Norton Abrasive Grade		Each
32A Purple—VBE Bond







				For Steel and Iron

				6"	1/2"	1 1/4"	4,140	Aluminum Oxide	Vitrified Clay	Type 12	Dish	60 (Rough)	K	4403A224	000000


				7"	1/2"	1 1/4"	3,600	Aluminum Oxide	Vitrified Clay	Type 12	Dish	46 (Rough)	K	4403A263	00000
				7"	1/2"	1 1/4"	3,600	Aluminum Oxide	Vitrified Clay	Type 12	Dish	60 (Rough)	K	4403A265	00000