Inch

Metric

Arrow

Circle

Hexagon

Isometric Ellipse (25°, 35°, 45°, and 60° Projections)

Square

Triangle

13

39

41

44

46

56

81

7 1/4"

8"

9"

9 7/8"

10"

10 1/8"

11 1/2"

12"

Plastic

Stainless Steel

Steel

1/16" to 1 3/8"

1/16" to 1 1/2"

1/16" to 3"

1 1/4" to 3 1/2"

2 mm to 30 mm

2 mm to 34 mm

2 mm to 48 mm

25 mm to 85 mm

4"

4 5/8"

5 7/8"

7"

7 5/8"

8 3/4"

8 13/16"

Plastic

Steel

Exempt

EAR99

Compliant

Not Compliant

Compliant

Not Compliant

100

100-N/7

186-905

186-906

200

3000

3000-1/24

4000

4000-2/30

4300

8220

8220-1/28

8240

8250

8260

S167CHZ

S167CHZ W/SLC

S167MCHZ

1"

2 cm

Mitutoyo

Starrett

3/4" to 12"

1 1/2" to 12"

10" to 52"

8

22

25

26

30

32

34

Concave Radii

Convex Radii

Length

Outside Diameters

1"

1 cm

2 3/4"

3 1/2"