Roughing/finishing threader

Cutters – for shaping – Including tool having plural alternatively usable cutting edges – With integral chip breaker – guide or deflector

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Details

10101R, 407113, B23G 502, B23B 2716, B23B 2722

Patent

active

046699252

ABSTRACT:
Roughing threader cutting tool for Buttress pipe thread employing three scallops with arcuate chip breaking back walls for leading transvese and side flank cutting edges solving problem of excessive time consuming multiple passes and coil string chips and quadrupling production rate compared to cutting complete thread with finish threader.

REFERENCES:
patent: 4281430 (1981-08-01), Hellnick
patent: 4335984 (1982-06-01), Zweekly
patent: 4340325 (1982-07-01), Gowanlock
patent: 4465412 (1984-08-01), Zweekly
patent: 4575888 (1986-03-01), Muren
patent: 4583887 (1986-04-01), Wertheimer
Carbolock Threading Grooving & Cut-Off Products Carboloy Systems Dept GE, Jul. 1981.

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