Patent ID: 9737941
Date: 2017-08-22
CPC Classifications: B23D,B27B

Claim:
1. A hole saw, comprising: a base member configured to secure the hole saw to a drive device; and first and second pairs of blade members extending orthogonally from the base member, the blade members of the first pair disposed parallel to each other, the blade members of the second pair disposed parallel to each other, the first pair disposed orthogonally to the second pair, the base member and the first and second pairs forming an open-sided boxed-shaped hole saw, each of the blade members are attached to the base member in a fixed position relative to the base member, each of the blade members having cutting teeth defining a cutting direction, each of the blade members having oppositely extending, freestanding distal ends, each blade member having a reduced width in the cutting direction located between the cutting teeth and the base member.