/ Saws / PTA & Hand Saw Blades / Hole Saw Arbors / Standard / A4 * Not actual product image 55144 A4 Arbor w/ Pilot Drill 1/4'' hex shank Hole Saw Arbor 55144 Other similar products Hole Saw arbor supplied with 6.35mm (1/4") pilot drill. Shank size 6.5mm (1/4"). Screw thread 1/2"-20. Screw thread 1/2"-20. Features Specifications Downloads Contact Starrett Features Fits hole saws from 14-30mm (9/16-1.3/16") diameter Arbor suitable for use with Fast Cut (FCH), Carbide Tipped (CT) hole saws. 9/16" to 13/16" 14mm to 30mm Specifications Fits Hole Saw Diameter (mm): 14mm to 30mm Fits Hole Saw Diameter (in): 9/16" to 13/16" Fits Chuck Size (mm): 6.5mm Fits Chuck Size (in): 1/4" Shank Size (mm): 6.5mm Shank Size (in): 1/4" Screw Thread: 1/2-20 Drill (HSS): Yes Drill (Carbide Tipped): No Drill Length (mm): 79mm Drill Length (in): 3-1/8" 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.