TRUSCO hand tap for Whitworth screws/SKS 1/4W20 top

[Features]
Used when creating and cleaning (cleaning) screw holes.
For screw thread correction and fabrication.

[Use]
Work material: iron, light metal.

【specification】
Accuracy: JIS grade 3
Tip: Top
Nominal size: W1/4
Thread length (mm): 24
Number of mountains: 20
Total length (mm): 62
Shank diameter (mm): 6
Shank square part (mm): 4.5
Pilot hole diameter (mm): 5.1
Machining Thread: Whitworth Thread
Surface treatment: non-coating

[Specification 2]
-

[Material/Finish]
Low alloy steel (SKS)

[Set contents/accessories]
-

【caution】
Cannot be used for stainless steel.