Starrett arbor extensions allow holesaws to be used in deeper or more confined spaces where a standard arbor cannot reach. The A5 extends A2/A2E/XA2 arbors (13mm chuck) and the A15 extends A1/A1E/XA1/A10 and locking arbors (9.5mm chuck). Both are 300mm (12") long.
Features 300mm (12") extension bar | A5: fits A2, A2E, XA2 arbors – 13mm (1/2") chuck | A15: fits A1, A1E, XA1, A10, A10E, XA10, A17-38 and XA17-38 arbors – 9.5mm (3/8") chuck | KA12 adaptor also available: screws on to 1/2"-20 thread arbors, allows use up to 152mm (6")
Benefits Enables holesaw use in confined spaces, wall cavities and floor voids | Maintains arbor compatibility across the standard and extended range