Inch

Metric

1/32" to 1/8"

1"

1 1/4"

1 1/2"

1 5/8"

1 3/4"

2"

2 1/2"

Buffing Wheels

Burs

Cutoff Wheels

Flap Sanding Sleeves

Flap Sanding Wheels

Grinding Bits

Grinding Cones

Grinding Wheels

Polishing Bobs

Rubber-Cushioned Abrasive Grinding Bits

Sanding Pads for Internal and Irregular Surfaces

Sanding Sleeves

Spiral-Wound Sanding Rolls

Wheel Brushes

Dremel Grinders for Bits and Burs

Grinders for Bits and Burs

Grinders for Wheels and Cones

Handheld Power Drills

Rotary Tools

0.197"

1"

1 1/4"

1 1/2"

1 5/8"

Pull-Twist-Release

Slotted-Head Screw

Threaded Mounting Shaft and Nut

1-64

2-56

3-48

5-40

8-32

1/4"-20

5/8"-11

Aluminum Bronze

Plastic

Stainless Steel

Steel

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"

13"

46

60

80

90

120

150

180

220

240

0.007"

0.009"

0.011"

0.015"

0.02"

0.023"

0.024"

0.025"

0.027"

0.04"

0.041"

0.045"

0.049"

0.062"

0.07"

Threaded

Unthreaded

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"

Coarse

Medium

Fine

Extra Fine

1"

1 3/16"

1 1/4"

1 1/2"

2"

3"

Exempt

Compliant

Compliant with Exemptions

Not Compliant

Compliant

Not Compliant

EAR99