Patent ID: 8827604

Claim:
A hole saw apparatus comprising, in combination: a top spaced apart from a bottom; a U-shaped frame; a sleeve disposed within the U-shaped frame proximal the top; a hexagonal shank extended from the sleeve to the top; a hole saw attached downwardly to the U-shaped frame; a pair of identical spaced apart guide holes disposed upwardly within the hole saw; a cylinder disposed centrally within hole saw, the cylinder extended above and below the hole saw; a sliding mechanism movably disposed within the U-shaped frame, the sliding mechanism comprising: a plate extended horizontally within and proximal to the U-shaped frame; a pair of identical spaced apart guides extended downwardly from the plate, the guides slideably disposed within the hole saw guide holes; a push washer disposed horizontally and downwardly on the guides, the push washer slideably disposed within the hole saw and along the cylinder.