Type |
Spiral fluted taps |
System of measurement |
Metric |
Individual/Set |
Individual |
Tap material |
High speed steel (HSS) |
Coating |
Oxide |
Thread type |
Whitworth |
Thread size |
7/8W9 |
Tap limit/ Class |
P3 |
Thread length |
33mm |
Chamfer type |
Taper |
Chamfer threads |
2.5P |
Flute type |
Spiral |
Number of grooves/Flutes |
4 |
Direction of thread |
Clockwise (right-handed) |
Total length |
115mm |
Shank diameter |
17mm |
Shank length |
55mm |
Driving part type |
Square |
Shank head size |
13mm |
Shank head length |
16mm |
Hole type |
Blind hole |
Overall diameter |
14mm |
Overall length |
115mm |
Representative standard |
JIS |