Four
regular models are available, each furnished with a 1/4 in (6.35mm)
HSS pilot drill. Setscrew in the body allows easy replacement of the
pilot drill. Quick-Hitch arbors permit instant change of hole saws
without tools and without removing the arbor from the chuck. Nos.
A1 and A4 models are supplied with flats to fit a 5/8 in. wrench.
Specify arbor by catalog number to suit hole saw diameter. When specifying
carbide grit or diamond grit saws, specify "X" arbors with
carbide-tipped pilot drills.