Inch

Metric

0.35 mm

0.4 mm

0.45 mm

0.5 mm

0.6 mm

0.7 mm

0.75 mm

0.8 mm

1 mm

1.25 mm

1.5 mm

1.75 mm

2 mm

2.5 mm

3 mm

3.5 mm

Black Oxide

Gold Oxide

Titanium Carbon Nitride (TiCN) Coated

Titanium Nitride (TiN) Coated

Uncoated

Individual

Set

Cobalt Steel

High-Speed Steel

Metric

UNC

UNEF

UNF

UNS

D3

D4

D5

D6

D7

D8

D9

H2

H3

H4

H5

H6

H11

1"

1.09"

1 3/32"

1 1/8"

1 9/64"

1 7/32"

1.22"

1 1/4"

1 11/32"

1 7/16"

1 1/2"

1 21/32"

1.71"

1 13/16"

2"

2 7/32"

2 1/2"

2 9/16"

Thread Cutting

Drill Bit

Tap

0-80, 1-64, 1-72, 2-56, 2-64, 3-48, 3-56, 4-40, 4-48

1 each of sizes 6-32, 8-32, 10-24, 10-32, 1/4-20, 5/16-18, 3/8-16, 7/16-14, and 1/2-13

1/4"-20, 1/4"-28, 5/16"-18, 5/16"-24, 3/8"-16, 3/8"-24, 7/16"-14, 7/16"-20, 1/2"-13, and 1/2"-20

5-40, 5-44, 6-32, 6-40, 8-32, 8-36, 10-24, 10-32, 12-24, and 12-28

6-32, 8-32, 10-24, 10-32, 1/4"-20, 5/16"-18, 3/8"-16, 7/16"-14, and 1/2"-13

6-40, 8-36, 10-24, 10-32, 1/4"-28, 5/16"-24, 3/8"-24, 7/16"-20, and 1/2"-20

M2.5 × 0.45 mm, M3 × 0.5 mm, M3.5 × 0.6 mm, M4 × 0.7 mm

M3 × 0.50 mm, M4 × 0.70 mm, M5 × 0.80 mm, M6 × 1.00 mm, M8 × 1.25 mm, M10 × 1.50 mm, and M12 × 1.75 mm

M5 × 0.8 mm, M6 × 1.00 mm, M8 × 1.25 mm, M10 × 1.5 mm, and M12 × 1.75 mm

EAR99