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NC & NF Spiral Point Extension Taps<br />
Right Hand High Speed Steel<br />
Size<br />
Overall<br />
Length<br />
GH#<br />
# Of<br />
Flutes<br />
Shank<br />
Diameter<br />
Standard<br />
Shank<br />
Plug*<br />
EDP #<br />
Shank<br />
Diameter<br />
Small<br />
Shank<br />
Plug<br />
EDP #<br />
#2-56 NC 4" 2 2 0.141" 20035 -- --<br />
#4-40 NC 4" 2 2 0.141" 20085 0.080" 25085<br />
#6-32 NC<br />
#8-32 NC<br />
#10-24 NC<br />
#10-32 NF<br />
1/4"-20 NC<br />
1/4"-28 NF<br />
5/16"-18 NC<br />
5/16"-24 NF<br />
3/8"-16 NC<br />
3/8"-24 NF<br />
4" 3 2 0.141" 20125 -- --<br />
6" 3 2 0.141" 21125 -- --<br />
4" 3 2 0.168" 20145 -- --<br />
6" 3 2 0.168" 21145 -- --<br />
4" 3 2 0.194" 20165 0.136" 25165<br />
6" 3 2 0.194" 21165 0.136" 26165<br />
4" 3 2 0.194" 20175 0.136" 25175<br />
6" 3 2 0.194" 21175 0.136" 26175<br />
4" 3 2 0.255" 20205 0.185" 25205<br />
6" 3 2 0.255" 21205 0.185" 26205<br />
4" 3 2 0.255" 20215 0.185" 25215<br />
6" 3 2 0.255" 21215 0.185" 26215<br />
4" 3 2 0.318" 20225 0.240" 25225<br />
6" 3 2 0.318" 21225 0.240" 26225<br />
4" 3 2 0.318" 20235 0.240" 25235<br />
6" 3 2 0.318" 21235 0.240" 26235<br />
4" 3 3 0.381" 20245 0.275" 25245<br />
6" 3 3 0.381" 21245 0.275" 26245<br />
4" 3 3 0.381" 20255 0.275" 25255<br />
6" 3 3 0.381" 21255 0.275" 26255<br />
7/16"-14 NC 6" 3 3 -- -- 0.323" 26265<br />
7/16"-20 NF 6" 3 3 -- -- 0.323" 26275<br />
1/2"-13 NC 6" 3 3 -- -- 0.367" 26285<br />
1/2"-20 NC 6" 3 3 -- -- 0.367" 26295<br />
5/8"-11 NC 6" 3 3 -- -- 0.480" 26325<br />
*Also referred to as "Pulley" Taps<br />
V 1.0 – November 2011 Page 39
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