Bottoming fractional hand taps is a high speed steel ground thread. Most versatile tap for hand use or for tapping under power. Popular for use in general machine tapping g or CNC tapping. Appropriate for tapping the vast majority of materials.
Technical Specs
ItemTap
Thread StandardUNC, UNJC
Tap MaterialHigh Speed Steel
Thread Length1 1/4 in
75% Thread Drill Size5/16 in
Thread DirectionRight Hand
Tap Shank StandardANSI 302
65% Thread Drill SizeP
Extended NeckNo
Primary Material ApplicationAluminum, Brass, Bronze, Copper
Series5303/2303
Shank Length1.6900 in
Spiral DirectionNeutral
StandardsANSI, NPT, UTS
Tap StyleStraight Flute
Helix Angle0 Degrees
Thread Size3/8"-16
Tap ChamferBottoming
Tap FinishBright (Uncoated)
Overall Length2 15/16 in
Thread LimitH3
Number of Flutes4
55% Thread Drill Size8.40 mm
Coolant FedNon-Coolant Through
Measurement SystemFractional Inch
Primary Material Application ISO CodeN
Shank Dia.0.381 in
Shank Type - MachiningStraight
Square Size0.2860 in
Tap GroupingTap
Threads per Inch16 TPI
Country of OriginUnited States
(subject to change)