Inch

Thread

Drill Bit

Taper Chamfer

Plug Chamfer

Bottoming

Chamfer

Tap Sets

Size Lg. Overall

Lg. Size Decimal Size

Equivalent No. of

Flutes Thread

Type Pitch

Dia. Limit Each Each Each Each

Uncoated High-Speed Steel

6-32 11/16" 2" 36 ga. 0.1065" 3 UNC H3 ______ __ 2584A12 $7.75 2584A67 $7.75 ______ __

8-32 3/4" 2 1/8" 29 ga. 0.136" 4 UNC H3 2584A46 $7.89 2584A13 7.89 2584A68 7.89 2584A314 $21.30

10-24 7/8" 2 3/8" 25 ga. 0.1495" 4 UNC H3 2584A47 8.02 2584A14 8.02 2584A69 8.02 ______ __

10-32 7/8" 2 3/8" 21 ga. 0.159" 4 UNF H3 2584A48 8.02 2584A32 8.02 2584A71 8.02 2584A318 21.65

1/4"-20 1" 2 1/2" 7 ga. 0.201" 4 UNC H3 2584A49 7.26 2584A15 7.26 2584A72 7.26 2584A321 19.60

1/4"-28 1" 2 1/2" 3 ga. 0.213" 4 UNF H3 2584A51 11.90 2584A33 11.90 2584A73 11.90 2584A323 32.13

1/4"-40 1" 2 1/2" 2 ga. 0.221" 4 UNS H3 2584A901 67.02 2584A902 67.02 2584A903 67.02 2584A927 197.40

5/16"-18 1 1/8" 2 23/32" F 0.257" 4 UNC H3 2584A52 9.74 2584A16 9.74 2584A74 9.74 2584A325 26.30

5/16"-20 1 1/8" 2 23/32" G 0.261" 4 UNS H3 2584A904 67.02 2584A905 67.02 ______ __ 2584A928 200.20

5/16"-24 1 1/8" 2 23/32" I 0.272" 4 UNF H3 2584A53 9.74 2584A34 9.74 2584A75 9.74 2584A327 26.30

3/8"-16 1 1/4" 2 15/16" 5/16" 0.3125" 4 UNC H3 2584A54 12.63 2584A17 12.63 2584A76 12.63 2584A329 34.10

3/8"-24 1 1/4" 2 15/16" Q 0.332" 4 UNF H3 2584A55 12.63 2584A35 12.63 2584A77 12.63 2584A332 34.10

7/16"-14 1 7/16" 3 5/32" U 0.368" 4 UNC H3 2584A56 18.31 2584A18 18.31 2584A78 18.31 ______ __

7/16"-20 1 7/16" 3 5/32" 25/64" 0.3906" 4 UNF H3 2584A57 18.31 2584A36 18.31 2584A79 18.31 ______ __

1/2"-13 1 21/32" 3 3/8" 27/64" 0.4219" 4 UNC H3 2584A58 21.38 2584A19 21.38 2584A81 21.38 2584A338 57.73

1/2"-20 1 21/32" 3 3/8" 29/64" 0.4531" 4 UNF H3 2584A59 21.38 2584A37 21.38 2584A82 21.38 2584A341 57.73

9/16"-18 1 21/32" 3 19/32" 33/64" 0.5156" 4 UNF H3 2584A592 32.55 2584A372 32.55 ______ __ ______ __

9/16"-20 1 21/32" 3 19/32" 33/64" 0.5156" 4 UNS H3 2584A907 81.91 2584A908 81.91 2584A909 81.91 2584A929 240.96

5/8"-11 1 13/16" 3 13/16" 17/32" 0.5313" 4 UNC H3 2584A61 41.17 2584A38 41.17 2584A83 41.17 ______ __

5/8"-18 1 13/16" 3 13/16" 37/64" 0.5781" 4 UNF H3 2584A62 41.17 2584A39 41.17 2584A84 41.17 ______ __

11/16"-16 1 13/16" 4 1/32" 5/8" 0.625" 4 UNF H3 2584A911 38.72 2584A912 38.72 ______ __ 2584A931 120.40

11/16"-18 1 13/16" 4 1/32" 16 mm 0.6299" 6 UNS H3 2584A914 92.34 2584A915 92.34 2584A916 92.34 2584A932 261.80

3/4"-10 2" 4 1/4" 21/32" 0.6563" 4 UNC H3 2584A63 54.04 2584A41 54.04 2584A85 54.04 ______ __

3/4"-16 2" 4 1/4" 11/16" 0.6875" 4 UNF H3 2584A64 54.04 2584A42 54.04 2584A86 54.04 ______ __

7/8"-18 2 7/32" 4 11/16" 53/64" 0.8281" 6 UNS H3 2584A917 116.17 2584A918 116.17 2584A919 116.17 2584A933 327.60

1"-8 2 1/2" 5 1/8" 7/8" 0.875" 4 UNC H4 2584A65 71.32 2584A43 71.32 2584A87 71.32 2584A352 192.56

1"-12 2 1/2" 5 1/8" 59/64" 0.9219" 4 UNF H4 2584A66 71.32 2584A44 71.32 2584A88 71.32 2584A354 192.56

1"-14 2 1/2" 5 1/8" 23.6 mm 0.9291" 4 UNS H4 2584A01 71.32 2584A21 71.32 2584A89 71.32 2584A556 192.56

1"-16 2 1/2" 5 1/8" 15/16" 0.9375" 6 UNS H3 2584A921 132.55 2584A922 132.55 2584A923 132.55 2584A934 372.40

1"-20 2 1/2" 5 1/8" 61/64" 0.9531" 6 UNEF H3 ______ __ 2584A925 132.55 ______ __ 2584A935 372.40

1 1/8"-7 2 9/16" 5 7/16" 63/64" 0.9844" 4 UNC H4 2584A02 116.67 2584A22 116.67 2584A91 116.67 2584A558 315.01

1 1/8"-12 2 9/16" 5 7/16" 1 1/32" 1.0313" 4 UNF H4 2584A03 116.67 2584A23 116.67 2584A92 116.67 2584A561 315.01

1 1/4"-7 2 9/16" 5 3/4" 1 3/32" 1.0938" 4 UNC H4 2584A04 141.56 2584A24 141.56 2584A93 141.56 2584A563 382.21

1 1/4"-12 2 9/16" 5 3/4" 1 11/64" 1.1719" 4 UNF H4 2584A05 141.56 2584A25 141.56 2584A94 141.56 2584A565 382.21

1 1/2"-6 3" 6 3/8" 1 11/32" 1.3438" 4 UNC H4 2584A08 186.67 2584A28 186.67 ______ __ 2584A569 504.01

1 1/2"-12 3" 6 3/8" 1 27/64" 1.4219" 6 UNF H4 2584A09 186.67 2584A29 186.67 2584A98 186.67 2584A572 504.01

Metric

Thread

Drill Bit

Taper Chamfer

Plug Chamfer

Bottoming

Chamfer

Tap Sets

Size Pitch,

mm Lg. Overall

Lg. Size Decimal Size

Equivalent No. of

Flutes Pitch

Dia. Limit Each Each Each Each

Uncoated High-Speed Steel

M4 0.7 3/4" 2 1/8" 3.3 mm 0.1299" 4 D4 26565A12 $6.81 26565A32 $6.81 26565A52 $6.81 26565A72 $18.39

M4.5 0.75 7/8" 2 3/8" 3.7 mm 0.1457" 4 D4 ______ __ 26565A914 27.84 ______ __ ______ __

M5 0.8 15/16" 2 3/8" 4.2 mm 0.1653" 4 D4 26565A14 6.81 26565A34 6.81 26565A54 6.81 26565A74 18.39

M6 1 1" 2 1/2" 5 mm 0.1968" 4 D5 26565A15 8.12 26565A35 8.12 26565A55 8.12 26565A75 21.92

M7 1 1 1/8" 2 23/32" 6 mm 0.2362" 4 D5 26565A16 9.39 26565A36 9.39 26565A56 9.39 26565A76 25.35

M8 1 1 1/8" 2 23/32" 6.9 mm 0.2716" 4 D5 26565A161 9.52 26565A361 9.52 26565A561 9.52 26565A761 25.70

M8 1.25 1 1/8" 2 23/32" 6.7 mm 0.2637" 4 D5 26565A17 9.80 26565A37 9.80 26565A57 9.80 26565A77 26.46

M10 1 1 1/4" 2 15/16" 8.9 mm 0.3503" 4 D5 26565A172 62.36 26565A372 62.36 26565A572 62.36 26565A772 168.37

M10 1.25 1 1/4" 2 15/16" 8.7 mm 0.3425" 4 D5 26565A173 17.67 26565A373 17.67 26565A573 17.67 26565A773 47.71

M10 1.5 1 1/4" 2 15/16" 8.5 mm 0.3346" 4 D6 26565A18 18.20 26565A38 18.20 26565A58 18.20 26565A78 49.14

M12 1.25 1 21/32" 3 3/8" 10.8 mm 0.4251" 4 D5 26565A182 20.38 26565A382 20.38 26565A582 20.38 26565A782 55.03

M12 1.5 1 21/32" 3 3/8" 10.5 mm 0.4134" 4 D6 26565A183 70.00 26565A383 70.00 26565A583 70.00 26565A783 189.00

M12 1.75 1 21/32" 3 3/8" 10.2 mm 0.4015" 4 D6 26565A19 20.21 26565A39 20.21 26565A59 20.21 26565A79 54.57

M14 1 1 21/32" 3 19/32" 13 mm 0.5118" 4 D5 26565A191 70.00 26565A391 70.00 26565A591 70.00 26565A791 189.00

M14 1.5 1 21/32" 3 19/32" 12.5 mm 0.4921" 4 D6 26565A192 31.26 26565A392 31.26 26565A592 31.26 26565A792 84.40

M14 2 1 21/32" 3 19/32" 12 mm 0.4724" 4 D7 26565A21 33.64 26565A41 33.64 26565A61 33.64 26565A81 90.83

M16 1 1 13/16" 3 13/16" 15 mm 0.5905" 4 D5 26565A211 76.36 26565A411 76.36 26565A611 76.36 26565A811 206.17

M16 1.5 1 13/16" 3 13/16" 14.5 mm 0.5709" 4 D6 26565A212 29.90 26565A412 29.90 26565A612 29.90 26565A812 80.73

M16 2 1 13/16" 3 13/16" 14 mm 0.5512" 4 D7 26565A22 35.21 26565A42 35.21 26565A62 35.21 26565A82 95.07

M18 1.5 1 13/16" 4 1/32" 16.5 mm 0.6496" 4 D6 26565A221 43.49 26565A421 43.49 26565A621 43.49 26565A821 117.42

M18 2.5 1 13/16" 4 1/32" 15.5 mm 0.6102" 4 D7 ______ __ 26565A43 43.23 26565A63 43.23 26565A83 116.72

M20 1.5 2" 4 15/32" 47/64" 0.7344" 4 D6 26565A231 54.37 26565A431 54.37 26565A631 54.37 26565A831 146.80

M20 2 2" 4 15/32" 18 mm 0.7087" 4 D7 26565A232 94.18 26565A432 94.18 26565A632 94.18 26565A832 254.29

M20 2.5 2" 4 15/32" 17.5 mm 0.689" 4 D7 26565A24 53.97 26565A44 53.97 26565A64 53.97 26565A84 145.72

M22 1.5 2 7/32" 4 11/16" 20 mm 0.7874" 4 D6 26565A919 82.62 26565A921 82.62 26565A922 82.62 ______ __

M22 2.5 2 7/32" 4 11/16" 25/32" 0.7813" 4 D7 26565A916 82.62 26565A917 82.62 ______ __ ______ __

M24 2 2 7/32" 4 29/32" 22 mm 0.8661" 4 D7 ______ __ 26565A924 108.29 26565A925 108.29 ______ __

M24 3 2 7/32" 4 15/16" 21 mm 0.8268" 4 D8 26565A25 69.03 26565A45 69.03 26565A65 69.03 26565A85 186.38