Portable core drill cutter for hard brittle sheets

Details Portable core drill cutter for hard brittle sheets Portable core drill cutter for hard brittle sheets

B - Operations, Transporting

23

B

77/20

B23B 39/22 (2006.01) B23B 51/04 (2006.01) B25H 1/00 (2006.01) B28D 1/04 (2006.01)

Patent

CA 1086101

PORTABLE CORE DRILL CUTTER FOR HARD BRITTLE SHEETS ABSTRACT OF THE DISCLOSURE A portable lightweight drill assembly is mounted against one side of a sheet of flat glass having a hole or crack to be repaired; the drill shaft extends through the hole or crack to mount cutters on both sides; the cutters are spring biased against the glass to exert equal cutting force and sim- ultaneously rotatable with the drill shaft to cut the hole from both sides to a diameter larger than the hole to be repaired, for insertion of a glass repair plug. - 1 -

303953

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