Pilot drill locating means for hole saw assembly

Details Pilot drill locating means for hole saw assembly Pilot drill locating means for hole saw assembly

1975-06-02

1976-08-10

Simpson, Othell M.

Cutting by use of rotating axially moving tool

Tool or tool with support

Having axial, core-receiving central portion

144 23, 408703, B23B 5104

Patent

active

039738620

ABSTRACT:
An improved means for locating the pilot drill of a hole saw assembly is disclosed. The assembly generally includes an arbor, which has a body and a spindle projecting from one end thereof, and a cup-shaped hole saw, with the arbor and the hole saw carrying cooperating cam and spring-loaded locking and driving means to draw one planar face of the arbor into secure flush engagement with the planar face of the base of the cup-shaped cutting member or hole saw itself. The forward face of the arbor has a recess therein, and one end of the pilot drill has a locating sleeve dimensioned so as to fit into the recess in the face of the arbor so that when the locking and driving means are utilized to draw the face of the arbor into flush contact with the face of the hole saw, the sleeve is trapped between the two faces, and the pilot drill is firmly located.

REFERENCES:
patent: 3880546 (1975-04-01), Segal

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