Tapered spindles are used to allow the fitting of polishing buffs and wheels to bench grinders and sander/polishers. 12mm internal thread. Screws onto the RHS of your 150mm (6″) bench grinder.Features:-

• 12mm Left Hand Tapered Spindle
• Polishing Metals, Plastics, Aluminium, Stainless Steel, Copper, Brass, Chrome, Silver, Gold, Alloys
• Fits All Bench Grinders