[Backing plate 4.1 in]
[5 Support Pad]
[Backing pad clip]
Bosch s X-LOCK backing pads feature the X-LOCK bracket that provides a wheel change that is up to five times faster than traditional interfaces. There is an audible snap when you mount the X-LOCK support pad on an X-LOCK sander. The wheel can be mounted properly with the included X-LOCK clip. The wheel is released from the grinder with the pull of a lever. The pads work with Bosch abrasive fiber discs with high quality zirconium grain for exceptional metal removal and processing. Bosch X-LOCK support pads are not backward compatible with standard 7/8 in. arbor brackets