STARRETT 3/8 HOLE SAW MANDREL,1-1/4 - 6"STARRETT 3/8 HOLE SAW MANDREL,1-1/4 - 6" 56615, FITS HOLE SAWS FROM 1-1/4" TO 6", 3/8" SHANK, 5/8-18 THREAD This is a Starrett Hole Saw Arbor that includes a high speed steel pilot drill. It will fit their holes saws that are 1-1/4" to 6". With a 11/32" hex shank it will fit into 3/8" drill chucks and it has a male screw thread of 5/8"-18 for mounting a hole saw with that female thread. This arbor also includes Starrett's Quick-Hitch design that enables instant change-out of hole saws without additional tools and without removing the arbor from the chuck.
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