Inch

1"

1 3/4"

2"

Buffing Wheels

Cutoff Wheels

Grinding Cones

Grinding Wheels

Hole Saws

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"

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

Carbide-Tipped Steel

Plastic

Rubber

Stainless Steel

Steel

3,000 rpm

5,000 rpm

6,000 rpm

7,000 rpm

7,600 rpm

8,000 rpm

9,000 rpm

10,000 rpm

11,000 rpm

12,000 rpm

14,000 rpm

15,000 rpm

18,000 rpm

19,000 rpm

19,100 rpm

20,000 rpm

22,000 rpm

24,000 rpm

25,000 rpm

26,000 rpm

27,000 rpm

28,000 rpm

30,000 rpm

40,000 rpm

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"

2-56

3-48

5-40

8-32

1/4"-20

1/2"-20

5/8"-11

5/8"-18

1 1/4"-20

Threaded

Unthreaded

Compliant

Not Compliant

EAR99

Compliant

Not Compliant

Exempt

1"

1 3/16"

1 1/4"

1 1/2"

2"

3"

1"

1 3/16"

1 1/2"

2"

3"

1"

1 1/2"

2"

3"

4"

5"

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"

9/16" to 1 3/16"

9/16" to 6"

1 1/4" to 6"

1 1/4" to 6 5/8"

1 1/4" to 8 9/32"

14 mm to 30 mm

14 mm to 152 mm

32 mm to 152 mm

32 mm to 168 mm

32 mm to 210 mm

1"

1 1/2"

2"