/ Saws / PTA & Hand Saw Blades / Hole Saw Arbors / Ejector Spring / KA7-N * Not actual product image 11557 KA7-N Core ejector 11557 Other similar products Spring for fitting over pilot drill. Spring pushes core out of hole saw after completion of the cut. Features Specifications Downloads !Related products Contact Starrett Features Spring fits over pilot drill and pushes core out of saw after cut Specifications Fits Drills: All 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.