MRMA34C MORSE Arbor
Heavy duty carbon steel screw on arbor without lock pins comes complete with pilot drill.
Adapt Morse and most other makes of holesaws 9/16 to 1.3/16 inch diameter to any power drill used by professionals.
Shank Size: 3/8 inch hex
Thread Size: 1/2 -20
Chuck Size: 3/8 inch
Pilot Drill: 70mm (replaceable MR4PDS)