This tap is made of high speed steel and has a 0.381 inch diameter, 4⅛ inch long shank. It is designed for use with stainless steel/steel, and meets the standards for ANSI. This 398 series tap has an oxide finish, and has fractional inch measurements. It is non-coolant through, has right hand direction with a six-inch length. Plus it has three flutes.
Technical Specs
ItemTap
Thread StandardUNC
Overall Length6 in
75% Thread Drill Size5/16 in
Thread DirectionRight Hand
55% Thread Drill Size8.40 mm
Coolant FedNon-Coolant Through
Measurement SystemFractional Inch
Primary Material Application ISO CodeM, P
Shank Dia.0.381 in
Square Size0.2860 in
Tap ChamferModified Bottoming
Tap MaterialHigh Speed Steel
Tap StyleSpiral Flute
Helix Angle30 Degrees
Thread Size3/8"-16
Tap FinishOxide
Thread Length1 7/8 in
Thread LimitH3
Number of Flutes3
65% Thread Drill SizeP
Extended NeckYes
Primary Material ApplicationStainless Steel, Steel