This tap is made of high speed steel and has a 0.381 inch diameter, 1-11/16 inch long shank. It is for use with aluminum, brass, bronze, cast iron, copper, steel, and meets the standards for Table 302, USCTI. This 403 series tap has a bright finish, and has fractional inch measurements. It has right hand direction with a 2-15/16 inch length. Plus it has four flutes and a straight shank.
Technical Specs
ItemTap
Thread StandardUNC
Tap MaterialHigh Speed Steel
Thread Length1 1/4 in
75% Thread Drill Size5/16 in
Class of Fit2B
Number of Flutes4
55% Thread Drill Size8.40 mm
Extended NeckYes
Primary Material ApplicationAluminum, Brass, Bronze, Cast Iron, Copper, Steel
Series403
Shank Length1 11/16 in
Spiral DirectionNeutral
StandardsUSCTI 302A
Tap StyleStraight Flute
Threads per Inch16 TPI
Thread Size3/8"-16
Tap ChamferBottoming
Tap FinishBright (Uncoated)
Overall Length2 15/16 in
Thread LimitH5
Thread DirectionRight Hand
Tap Shank StandardUSCTI
65% Thread Drill SizeP
Measurement SystemFractional Inch
Primary Material Application ISO CodeK, N, P
Shank Dia.0.381 in
Shank Type - MachiningStraight
Square Size0.1100 in
Tap GroupingTap
Thread Limit / Class of FitH5 / 2B
Helix Angle0 Degrees
Country of OriginUnited States
(subject to change)