A1 A2 A4 A10 A17-38E KA7-N Arbors and Accessories Cat. No. EDP Fits Hole Saw Diameter Shank Size in mm in mm A1 55141 9/16 - 1-3/16 14 - 30 11/32 Hex 8.75 Hex A4 55144 1/4 Hex 6.5 Hex A2 - Quick-Hitch 55142 1-1/4 - 8-9/32 32 - 210 7/16 Hex 11 Hex A10 - Quick-Hitch 56615 11/32 Hex 8.75 Hex High Speed Steel WITH PILOT DRILL Arbor suitable for use with Fast Cut (FCH), Carbide Tipped (CT) and Diamond (D) hole saws (Diamond hole saw applications will usually require an arbor with a carbide tipped pilot drill). Extended Length Arbor suitable for use with Deep Cut (DCH) and Multi-Purpose (MPH) hole saws. Cat. No. EDP Fits Hole Saw Diameter Shank Size in mm in mm A1-E 11925 9/16 - 1-3/16 14 - 30 11/32 Hex 8.75 Hex A4-E 11931 1/4-20 Round 6.5 Round A2-E - Quick-Hitch 11928 1-1/4 - 8-9/32 32 - 210 7/16 Hex 11 Hex A10-E - Quick-Hitch 11934 11/32 Hex 8.75 Hex With Carbide Drill Arbor Extension Locking Arbor Cat. No. EDP Fits Hole Saw Diameter Shank Size in mm in mm XA1 56758 9/16 - 1-3/16 14 - 30 11/32 Hex 8.75 Hex XA2 - Quick-Hitch 56759 1-1/4 - 8-9/32 32 - 210 7/16 Hex 11 Hex XA10 - Quick-Hitch 56763 11/32 Hex 8.75 Hex Arbor Adaptor Allows use of hole saws up to 6" (152mm). Cat. No. EDP Description KA12-N* 11558 Adaptor screws on to arbors with a 1/2"- 20 screw thread and allows use of hole saws up to 152mm (6") *CAT. NO. WITH K: Clam pack (plastic clamshell packaging) Cat. No. EDP Fits Hole Saw Diameter Shank Size in mm in mm A17-38E** 11937 1-1/4 - 6-1/4 32 - 159 11/32 Hex 8.75 Hex XA17-38 Carbide Tipped 64199 1-1/2 - 8-9/32 38 - 210 ** With Extended Length HSS Pilot Drill Ejector Spring Spring for fitting over pilot drill. Spring pushes core out of hole saw after completion of the cut. Cat. No. EDP Description KA7-N* 11557 Ejector Spring *CAT. NO. WITH K: Clam pack (plastic clamshell packaging) Cat. No. EDP For Support Fits Chuck Size A5 55145 A2, A2E 1/2" - 13mm KA5-N* 11560 KA15-N* 11559 A1, A1E, A10, A10E, A17-38E 3/8" - 9.5mm *CAT. NO. WITH K: Clam pack (plastic clamshell packaging) 26 H ole S aws