Thread cutting tools

Cutting by use of rotating axially moving tool – Tool or tool with support – With pitch-stabilizing ridge

Patent

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Details

10120, 408218, B23G 504

Patent

active

047521643

ABSTRACT:
Chaser for cutting threads on a work piece, the chaser having thread cutting formations with crests and roots, one flank of each of said formations being relieved at a first angle from the region of the crest toward the root and being relieved at a greater angle in the region adjacent the root of the formation. The chasers may be provided in sets with odd numbered chasers being mirror images of the even numbered chasers.

REFERENCES:
patent: 1007317 (1911-10-01), Wells
patent: 2757392 (1956-08-01), Petersen

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