Description
3-1/4"-8 UNS HSS Plug Hand Tap for cutting internal threads by hand or in a tapping head. Cutting edges on the chamfered lead progressively form the thread as the tap advances, with straight flutes carrying chips back out of the hole. This size has a 3-1/4" cutting diameter, 4-9/16" of flute, 10" overall length and a 2.793" shank.
- HSS construction that holds a keen edge at moderate cutting speeds and regrinds easily.
- Uncoated (Bright) finish, leaves the edge bare for free cutting.
- 3-1/4" thread at 8 threads per inch.
- Sold individually.
Specifications
- Size: 3-1/4"-8
- Thread Size: 3-1/4"
- Threads per inch: 8
- Diameter: 3-1/4"
- Shank Size: 2.793"
- Length: 10"
- Flute Length: 4-9/16"
- Material: HSS
- Finish: Uncoated (Bright)
- Measurement Type: Inch
- Pack Quantity: 1
Applications
For threading by hand with a tap wrench or in a tapping head, in steel, cast iron, aluminum and brass. Taper for starting, plug for general work, bottoming for threading to the base of a blind hole.
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800-222-0324

