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High-Tensile, Heat-Treatable Hardened and Tool Steels
UNC / DIN length - ANSI shank
UNF
Series 3992 - PM cobalt, UNC, spiral point, TiN coated
2B
Cut Taps Class of Fit Size No. Shank dia. Square Size Overall 2B Series Order
Length
Through Hole 4-40 Flutes inch inch Approx. 3992 No.
0° Helix 5-40 inch z
Plug Tap 6-32 3 0.141 0.110 Limits z 2.845
8-32 3 0.141 0.110 2.205 z 3.175
Chamfer Lead 10-24 3 0.141 0.110 2.205 H2/H3 z 3.505
12-24 3 0.168 0.131 2.205 H2/H3 z 4.166
B · 3.5 - 5 1/4-20 3 0.194 0.152 2.480 H3/H4 z 4.826
5/16-18 3 0.220 0.165 2.756 H3/H4 z 5.486
3/8-16 3 0.255 0.191 3.150 H3/H4 z 6.350
7/16-14 3 0.318 0.238 3.150 H3/H4 z 7.938
1/2-13 3 0.381 0.286 3.543 H4/H5 z 9.525
9/16-12 3 0.323 0.242 3.937 H4/H5 z 11.113
5/8-11 4 0.367 0.275 3.937 H5/H6 z 12.700
3/4-10 4 0.429 0.322 4.331 H5/H6 z 14.288
7/8-9 4 0.480 0.360 4.331 H5/H6 z 15.875
1-8 4 0.590 0.442 4.331 H5/H6 z 19.050
1 1/8-7 4 0.697 0.523 4.921 H5/H6 z 22.225
1 1/4-7 4 0.800 0.600 5.512 H5/H6 z 25.400
1 3/8-6 4 0.896 0.672 6.299 H6/H7 z 28.575
1 1/2-6 4 1.021 0.766 7.087 H6/H7 z 31.750
5 1.108 0.831 7.087 H7/H8 z 34.925
5 1.233 0.925 7.874 H7/H8 38.100
7.874 H7/H8
H7/H8
DIN length - ANSI shank
Series 3994 - PM cobalt, UNF, spiral point, TiN coated
Size No. Shank dia. Square Size Overall 2B Series Order
Length
4-48 Flutes inch inch Approx. 3994 No.
5-44 inch z
6-40 3 0.141 0.110 Limits z 2.845
8-36 3 0.141 0.110 2.205 z 3.175
10-32 3 0.141 0.110 2.205 H2/H3 z 3.505
12-28 3 0.168 0.131 2.205 H2/H3 z 4.166
1/4-28 3 0.194 0.152 2.480 H2/H3 z 4.826
5/16-24 3 0.220 0.165 2.756 H2/H3 z 5.486
3/8-24 3 0.255 0.191 3.150 H3/H4 z 6.350
7/16-20 3 0.318 0.238 3.150 H3/H4 z 7.938
1/2-20 3 0.381 0.286 3.543 H3/H4 z 9.525
9/16-18 3 0.323 0.242 3.543 H3/H4 z 11.113
5/8-18 4 0.367 0.275 3.937 H3/H4 z 12.700
3/4-16 4 0.429 0.322 3.937 H4/H5 z 14.288
7/8-14 4 0.480 0.360 3.937 H4/H5 z 15.875
1-12 4 0.590 0.442 3.937 H4/H5 z 19.050
1 1/8-12 4 0.697 0.523 4.331 H4/H5 z 22.225
1 1/4-12 4 0.800 0.600 4.921 H5/H6 z 25.400
1 3/8-12 4 0.896 0.672 5.512 H6/H7 z 28.575
1 1/2-12 4 1.021 0.766 5.906 H6/H7 z 31.750
6 1.108 0.831 5.901 H6/H7 z 34.925
6 1.233 0.925 6.693 H6/H7 38.100
6.699 H6/H7
H6/H7
78 Bright Steam Oxide TiN TiCN MolyGlide® TiAlN AlCrN FIREX®
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