Arbor for annular hole cutter

Details Arbor for annular hole cutter Arbor for annular hole cutter

B - Operations, Transporting

27

B

143/18

B27B 33/18 (2006.01) B23B 51/04 (2006.01) B23D 57/00 (2006.01)

Patent

CA 1116051

ARBOR FOR ANNULAR HOLE CUTTER Abstract of the Disclosure An arbor for an annular hole cutter wherein a resiliently compressible sleeve is connected to a central pilot pin in the cutter and is expanded radially into tight frictional contact with the bore of the arbor so that a compression spring which biases a pointed pilot pin axially outwardly at the center of the cutter and compresses progressively as the cutter penetrates into the work will expand slowly by reason of said frictional contact and the slow recovery rate of the compressible sleeve when the cutter penetrates through the under sur- face of the workpiece. i.

337467

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