1/2" Grinding Wheels | McMaster-Carr

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7 Products

Adhesive-Back Sanding Discs

Press these discs onto sanding tools or backup pads for a hold that won’t slip. To ensure the best bond, clean the pad with a mild alcohol—avoid harsh solvents such as MEK and acetone that can damage the adhesive. Also known as PSA discs.

Cloth Abrasive Backing—Resist tearing and hold up to wet sanding better than paper-backed discs.

Aluminum Oxide Abrasive—The most versatile and affordable abrasive we offer. Aluminum oxide is the go-to choice for general purpose sanding.

Grit—The lower the grit number, the rougher the finish and the duller the appearance. The higher the grit number, the more polished the finish and the more satin or mirrored the appearance.

	For Use With	Choose a Grit	Pkg. Qty.		Pkg.
Aluminum Oxide Abrasive







	For Rough Finish

	1/2"	Cloth	Steel, Wood	Grinders for Bits and Burs, Portable Disc Sanders	40, 60, 80	100	4700A621	00000




			For Smooth Finish

			1/2"	Cloth	Steel, Wood	Grinders for Bits and Burs, Portable Disc Sanders	100, 120, 180, 220	100	4700A622	0000




					For Extra-Smooth Finish

					1/2"	Cloth	Steel, Wood	Grinders for Bits and Burs, Portable Disc Sanders	240, 320, 400	100	4700A623	0000

Handheld Dressing Sticks for Grinding Wheels

Also known as cleaning sticks, these can be used to sharpen a variety of abrasive wheels.

Silicon Carbide Abrasive—Silicon carbide sticks are sharper than aluminum oxide sticks.

	Grinding Wheel Dressing Sticks							Grinding Wheel Dresser Holders
	For Use On	Grit	Shape	Dia.	Lg.		Each		Each
Silicon Carbide Abrasive



		Vitrified Bond Wheels	46	Round	1/2"	6"	5246A12	000000	5246A22	000000

Clog-Resistant Adhesive-Back Sanding Discs

Spend more time sanding and less time replacing clogged discs. A slick coating prevents dust and debris buildup on the abrasive surface. Press these discs onto sanding tools or backup pads for a hold that won’t slip. To ensure the best bond, clean the pad with a mild alcohol—avoid harsh solvents such as MEK and acetone that can damage the adhesive. Also known as PSA discs.

Cloth Abrasive Backing—Resist tearing and hold up to wet sanding better than paper-backed discs.

Aluminum Oxide Abrasive—The most versatile and affordable abrasive we offer. Aluminum oxide is the go-to choice for general purpose sanding.

Grit—The lower the grit number, the rougher the finish and the duller the appearance. The higher the grit number, the more polished the finish and the more satin or mirrored the appearance.

	For Use With	Choose a Grit	Pkg. Qty.		Pkg.
Aluminum Oxide Abrasive







	For Rough Finish

	1/2"	Cloth	Steel, Wood	Grinders for Bits and Burs, Portable Disc Sanders	40, 60, 80	100	4675A111	00000




			For Smooth Finish

			1/2"	Cloth	Steel, Wood	Grinders for Bits and Burs, Portable Disc Sanders	100, 120, 180	100	4675A112	0000