Expandable tool including cutting section and pilot

Details Expandable tool including cutting section and pilot Expandable tool including cutting section and pilot

1978-06-08

1979-11-13

Smith, Gary L.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51380, B24B 500

Patent

active

041738527

ABSTRACT:
A rotatable cutting tool (10) of the disclosure includes an expandable cutting section (40) and a leading end having an expandable pilot (16) for properly aligning the tool during use. The trailing end of the tool preferably also has an expandable pilot (18) for aligning the tool during movement back through a bore which has been machined. A unitary body (20) of the tool has a helical slot (24) extending axially therethrough and has an inner tapered surface (26) for mounting the tool on a tapered arbor (12) such that movement therealong by nuts (34, 36, 38) engaged with axial end surfaces of the pilots controls the size of the cutting section and the pilots. The expandable tool construction is particularly adaptable for abrasion tools and is disclosed with abrasive particles (22) secured to the cutting section.

REFERENCES:
patent: 661282 (1900-11-01), Bachman
patent: 1733827 (1929-10-01), Seiler
patent: 2401215 (1946-05-01), Anderson
patent: 3195282 (1965-07-01), Magsig

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