This PTTI pipe tap is made of high speed steel and has a 0.313 inch diameter, 1⅜ inch long shank. It is designed for use with stainless steel/steel, and meets the standards for USCTI Table 311. This PTTI series pipe tap has a bright (uncoated) finish, and has fractional inch measurements. It has right hand direction with a 2⅛ inch length, plus it has four flutes.
Technical Specs
ItemPipe Tap
Thread StandardNPTF
Tap FinishBright (Uncoated)
Overall Length2 1/8 in
Number of Flutes4
Primary Material ApplicationStainless Steel, Steel
Helix Angle0 Degrees
Measurement SystemFractional Inch
SeriesPTTI
Shank Length1 3/8 in
Square Size0.2340 in
Tap ChamferSemi-Bottoming
Tap StylePipe
Thread Size1/8"-27
Tap MaterialHigh Speed Steel
Thread Length3/4 in
75% Thread Drill SizeQ
Tap Shank StandardUSCTI Table 311
Thread DirectionRight Hand
Material Grade - MachiningPTTI
Primary Material Application ISO CodeM, P
Shank Dia.0.313 in
Spiral DirectionNeutral
StandardsUSCTI Table 311
Tap GroupingTap
Threads per Inch27 TPI
Country of OriginUnited States
(subject to change)