This 397 spiral point tap is made of high speed steel and has a 0.168 inch diameter, 2⅞ inch long shank. It is designed for use with stainless steel/steel, and meets the standards for ANSI. This 397 series spiral point tap has an oxide finish, and has pipe measurements. It is non-coolant through, has right hand direction with a four-inch length. Plus it has three flutes.
Technical Specs
ItemSpiral Point Tap
Thread StandardUNC
Overall Length4 in
75% Thread Drill Size3.50 mm
Thread DirectionRight Hand
55% Thread Drill Size3.60 mm
Coolant FedNon-Coolant Through
Spiral DirectionNeutral
Measurement SystemPipe
Primary Material Application ISO CodeM, P
Shank Dia.0.168 in
Square Size0.1310 in
Tap ChamferPlug
Tap MaterialHigh Speed Steel
Tap StyleSpiral Point
Helix Angle0 Degrees
Thread Size#8-32
Tap FinishOxide
Thread Length1 1/8 in
Thread LimitH3
Number of Flutes3
65% Thread Drill Size3.40 mm
Extended NeckNo
Material Grade - Machining397
Primary Material ApplicationStainless Steel, Steel