download Product Catalogue PDF (2.4MB) - Goliath Threading Tools
download Product Catalogue PDF (2.4MB) - Goliath Threading Tools
download Product Catalogue PDF (2.4MB) - Goliath Threading Tools
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Spiral Flute - BA<br />
0 1 2 3 4 5 6 8 10<br />
No. of Flutes 3 3 3 2 2 2 2 2 2<br />
Style 2 2 2 2 2 2 1 1 1<br />
Fluteless - BA<br />
BA/BSB<br />
0 2 4 6 8<br />
No. of Flutes - - - - -<br />
Style 2 2 2 1 1<br />
BSB (British Standard Brass)<br />
BS949-1969<br />
Nominal<br />
Major<br />
Diameter<br />
d / inches<br />
TPI<br />
Overall<br />
Length<br />
Lmm<br />
Length of<br />
Thread<br />
lmm<br />
Shank<br />
Diameter<br />
d 1mm<br />
Neck<br />
Diameter<br />
d 2mm<br />
Neck<br />
Length<br />
l 1mm<br />
Square A/F<br />
mm<br />
Square<br />
Length<br />
l 2mm<br />
Table Reference<br />
Number<br />
Metric/Imperial<br />
Pitch Diameter<br />
Tolerance<br />
*1/4 26 66 19 6.3 4.5 11 5 8<br />
5/16 26 69 19 8 6 13 6.3 9<br />
3/8 26 76 20 10 7.5 15 8 11<br />
7/16 26 82 22 8 - - 6.3 9<br />
1/2 26 84 24 9 - - 7.1 10<br />
9/16 26 90 25 11.2 - - 9 12<br />
5/8 26 95 25 12.5 - - 10 13<br />
3/4 26 104 29 14 - - 11.2 14<br />
7/8 26 113 33 16 - - 12.5 16<br />
1 26 120 35 18 - - 14 18<br />
* 1/4” BSB identical to 1/4” BSF<br />
Class of Fit<br />
Straight Flute - BSB<br />
Available in:<br />
Taper Lead<br />
Second Lead<br />
Bottom Lead<br />
1/4 5/16 3/8 7/16 1/2 9/16 5/8 3/4 7/8 1<br />
No. of Flutes 3 4 4 4 4 4 4 4 4 4<br />
Style 2 2 2 3 3 3 3 3 3 3<br />
24<br />
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