Hole saw

Details Hole saw Hole saw

1981-01-16

1983-12-27

Bilinsky, Z. R.

Cutting by use of rotating axially moving tool

Tool or tool with support

Having axial, core-receiving central portion

125 20, 144 23, 408703, B23B 5104

Patent

active

044228112

ABSTRACT:
A new and improved hole saw construction providing a low cost hole saw mandrel with improved driving capability. A unique drive washer cooperates with radial stiffening ribs on a hole saw blade to effect the improved driving capability.

REFERENCES:
patent: 551043 (1895-12-01), Otto
patent: 1645736 (1927-10-01), Blanch et al.
patent: 3758221 (1973-09-01), Meshulam
patent: 3837759 (1974-09-01), Bittern

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