Cutting tool

Details Cutting tool Cutting tool

1989-09-08

1990-09-18

Howell, Daniel W.

Cutting by use of rotating axially moving tool

Tool or tool with support

Having stepped cutting edges

761086, 408230, B23B 5100

Patent

active

049573977

ABSTRACT:
A cutting tool for forming an opening in an object, such a steel belted tire or the like, is disclosed. The cutting tool is provided with a relatively small number of first helical grooves in its body portion, and a relatively large number of second helical grooves. The first and second sets of grooves are oriented in opposite directions relative to the longitudinal axis of the cutting tool. The tool so constructed is durable and capable of providing quick and clean operation in forming an opening in the said object.

REFERENCES:
patent: 1630602 (1927-05-01), Blanco
patent: 2342143 (1944-02-01), Howe
patent: 2918955 (1959-12-01), Simas
patent: 3824027 (1974-07-01), Janci
patent: 3947143 (1976-03-01), Gulla
patent: 4257154 (1981-03-01), Fuller
patent: 4507028 (1985-03-01), Matsushita

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