Inch

1/32" to 1/8"

1"

1 3/4"

2"

1"

Buffing Wheels

Cutoff Wheels

Grinding Bits

Grinding Cones

Grinding Wheels

Rubber-Cushioned Abrasive Grinding Bits

Sanding Discs

Sanding Flap Sleeves

Sanding Flap Wheels

Sanding Pads for Internal and Irregular Surfaces

Sanding Sleeves

Spiral-Wound Sanding Rolls

Wheel Brushes

0.197"

1"

1 1/4"

1 1/2"

1 5/8"

Iron

Nickel

Stainless Steel

Steel

Titanium

Wood

1"

1 3/8"

1 1/2"

1 5/8"

1 11/16"

1 3/4"

1 7/8"

1 15/16"

2"

2 5/16"

2 1/2"

2 5/8"

2 3/4"

3"

3 1/8"

3 1/4"

3 1/2"

4"

4 1/2"

6"

6 1/2"

8"

8 1/2"

10"

12"

Aluminum Bronze

Aluminum Oxide

Ceramic

Fabric

Plastic

Rubber

Stainless Steel

Steel

1"

1 1/2"

2"

3"

4"

5"

1"

1 1/2"

36

50

60

80

100

120

180

220

240

320

0.813"

0.85"

1"

1 1/16"

1 1/8"

1 1/4"

1 1/2"

1 5/8"

1 3/4"

2 1/8"

2 1/4"

2 1/2"

4 1/4"

4 1/2"

5 5/8"

6 1/4"

7 5/8"

8 1/4"

10 1/4"

Threaded

Unthreaded

3M Roloc

3M TSM

Merit Power-Lock Type I

Norton Speed-Lok TR

Norton Speed-Lok TR+

Norton Speed-Lok TS

Norton TY Power-Lock Type I

Standard Abrasive SocAtt

2-56

3-48

5-40

8-32

1/4"-20

5/8"-11

1 1/4"-20

Compliant

Not Compliant

EAR99

Exempt

Compliant

Not Compliant