Hook System for SCM Discs - The X-LOCK SCM Backing Pad is ideal for use with surface conditioning (SCM) fleece discs thanks to its special hook system. Featuring a centering pin, the pad is the perfect solution for all SCM fleece discs with centre hole. It is suitable for use with X-LOCK angle grinders. Changing backing pads is fast and convenient thanks to the keyless X-LOCK system. Click it on with X-LOCK – the fastest accessory-changing system on the market. Features and Benefits • Ideal for Surface Conditioning (SCM) Fleece Discs Thanks to Special Hook System • X-LOCK SCM Backing Pad is ideal for use with surface conditioning (SCM) fleece discs thanks to special hook system • Centering pin makes it the perfect solution for all SCM fleece discs with centre hole Specifications Diameter: 115mm Max. speed: 13.300rpm