Feature: 【Package Includes】Grinder extension shaft set includes 1 motor shaft adapter, 2 washers, 1 spanner, 1 nut, complete with accessories for easy use, installation and replacement.【Function】Motor arbor adapter is primarily used to convert a bench grinder spindle adapter to an extension spindle, a motor spindle extension spindle to a threaded spindle polisher, or a grinder extension spindle to a threaded spindle polisher.【Easy To Install】Attach the bench grinder extension shaft to the motor spindle or grinder spindle as required, then use a hexagonal spanner to securely tighten the hide screws, and finally clamp the buffing/sanding wheel and so on with 2 washers, tighten the nut and start polishing.【Material】Grinder extension shafts are made of high-quality metal with good hardness and compression resistance for a solid connection; high-quality metal with a blackened surface has good corrosion and rust resistance for long-term use.【Wide Application】Motor arbor adapter is used for mounting polishing wheels, grinding wheels, bristle wheels, wire brush wheels and drill chucks, which is a versatile extension shaft for mould and die milling machines and bench polishing shafts.Specification: Name: Grinder Extension ShaftMaterial: MetalSize: As ShownPackage Include: 1 * Grinder Extension Shaft