Ground Thread Spiral Point Tap. High Speed Steel construction. Bright finish. Plug chamfer. Spiral point pushes chips forward for through hole applications. Material applications include alloyed steel, and carbon steel.
Technical Specs
ItemTap
Thread StandardUNC
Tap FinishBright (Uncoated)
Overall Length2 1/2 in
Thread LimitH3
Thread DirectionRight Hand
Primary Material ApplicationAluminum, Brass, Bronze, Cast Iron, Copper, Steel
65% Thread Drill Size#5
Measurement SystemFractional Inch
Series0411
Shank Length1 1/2 in
Spiral DirectionNeutral
StandardsASME B94.9
Tap GroupingTap
Thread Limit / Class of FitH3 / 3B
Tap StyleSpiral Point
Thread Size1/4"-20
Tap MaterialHigh Speed Steel
Thread Length1 in
75% Thread Drill Size#7
Class of Fit3B
Number of Flutes2
55% Thread Drill Size#3
Extended NeckYes
Primary Material Application ISO CodeK, N, P
Shank Dia.0.255 in
Shank Type - MachiningStraight
Square Size0.1910 in
Tap ChamferPlug
Threads per Inch20 TPI
Helix Angle0 Degrees
Country of OriginUnited States
(subject to change)