Interstate 1/2-20 UNF, H3, 4-Flute, Bright Finish, Carbon Stee,l Straight Flute, Standard Hand Tap (SQ3387743WT08)

Bottoming chamfers are used for threading blind holes. They have 1 to 2 threads.

High Speed Steel (HSS) provides good wear-resistance and can be used in general purpose applications for both ferrous and nonferrous materials.

Bright provides a smooth, polished finish on the tool. It increases chip flow in softer materials such as aluminum, wood and plastic.

Tap Type: Standard Hand Tap

Thread Size (Inch): 1/2-20

Class of Fit: 3B

Thread Limit: H3

Number of Flutes: 4

Chamfer: Bottoming

Material: Carbon Steel

Finish/Coating: Bright

Thread Direction: Right Hand

Through Coolant: NonThrough Coolant

Thread Standard: UNF

Overall Length (Inch): 3-3/8

Oversize: No

Thread Length (Inch): 1-21/32