Precision cemented carbide threading tap

Details Precision cemented carbide threading tap Precision cemented carbide threading tap

2006-12-12

2006-12-12

Howell, Daniel W. (Department: 3722)

Cutting by use of rotating axially moving tool

Tool of specific diverse material

C408S222000, C470S198000

Reexamination Certificate

active

07147413

ABSTRACT:
A precision cemented carbide threading tap is designed for use in precision tool holders in synchronous high speed tapping. The precision tap includes a fully cylindrical shank without the aid of squares, flats or other notches. The precision tap further includes a threaded body portion and a threaded cutting chamfer portion. The threaded body portion and the threaded cutting chamfer portion of the precision tap are concentric to the cylindrical shank of the tap within a runout of 10 microns. The precision cemented carbide threading tap improves the accuracy, life and speed by which internal screw threads are produced.

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