Starrett A1E Hole Saw Arbor with Extra Long Pilot Drill - Fits Hole Saw Diameter 9/16 - 1.3/16" (14-30mm) - Fits 3/8" Chuck

With extra length high speed steel pilot drill and 8.75mm / 11/32" hex shank.
Exactly the same specification as the standard arbor range, except that the pilot drill is 13mm (1/2") longer.
Suitable for use with the extended cutting depth of the Deep Cut (DCH) and Multi Purpose Carbide Tipped (MPH) Hole Saws.
Set screw in the body allows for easy replacement of the pilot drill.