This machine tap is made of high speed steel and has a 0.318 inch diameter, 1 19/32 inch long shank. It is designed for use with all materials, and meets the standards for USCTI 302A. This SPGP series machine tap has a bright (uncoated) finish, and has fractional inch measurements. It has right hand direction with a 2 23/32 inch length. Plus it has three flutes and a straight shank.
Technical Specs
ItemMachine Tap
Thread StandardUNC
Tap FinishBright (Uncoated)
Overall Length2 23/32 in
Thread LimitH3
Thread DirectionRight Hand
Primary Material ApplicationAll Materials
65% Thread Drill Size17/64 in
Measurement SystemFractional Inch
SeriesSPGP
Shank Length1 19/32 in
Spiral DirectionNeutral
StandardsUSCTI 302A
Tap GroupingTap
Thread Limit / Class of FitH3 / H3
Tap StyleSpiral Point
Thread Size5/16"-18
Tap MaterialHigh Speed Steel
Thread Length11/16 in
75% Thread Drill SizeF
Class of FitH3
Number of Flutes3
55% Thread Drill SizeI
Extended NeckYes
Primary Material Application ISO CodeN, P
Shank Dia.0.318 in
Shank Type - MachiningStraight
Square Size0.2380 in
Tap ChamferBottoming
Threads per Inch18 TPI
Helix Angle0 Degrees
Country of OriginUnited States
(subject to change)