/ Saws / PTA & Hand Saw Blades / Hole Saw Arbors / Standard / A2 * Not actual product image 55142 A2 Arbor w/ Pilot Drill 7/16'' hex shank Hole Saw Arbor 55142 Other similar products Hole Saw arbor supplied with 6.35mm (1/4") pilot drill. Shank size 11mm (7/16"). Screw thread 5/8"-18. Screw thread 5/8"-18. Features Specifications Downloads Contact Starrett Features Fits hole saws from 32-210mm (1.1./4 - 8.9/32") diameter Arbor suitable for use with SH, DH, CT and D hole saws (Diamond hole saw applications will usually require an arbor with a carbide tipped pilot drill) Quick hitch arbor, allowing instant change of hole saw without tools and without removing the arbor from the chuck. Specifications Fits Hole Saw Diameter (mm): 32mm - 210mm Fits Hole Saw Diameter (in): 1-1/4" to 8-9/32" Fits Chuck Size (mm): 9.5mm Fits Chuck Size (in): 3/8" Shank Size (mm): 11mm Shank Size (in): 7/16" Screw Thread: 1/2-20 Downloads Starrett Hole Saws (Bulletin 671) Starrett Hole Saw Brochure includes all hole saws, drive arbors, pilot drills, quick change systems sets and accessories Starrett PTA and Hand Tools (Catalog 72) Power tools and accessories and hand tools catalog, including hole saws, hack saws, jig saws, reciprocating saws, measuring tapes, utility knives and a host of specialty products.