3M Hookit Disc Pad Hookit™ attachment system enables easy disc change-out, maximizing abrasive disc life Tapered edges from 15 degrees to 45 degrees make it easy to sand on flat or contoured surfaces Choose pads designed for 1,500 to 12,000 maximum rpms for a variety of uses Medium density foam construction provides support and flexibility for finer finishing and longer pad life Disc pads designed to save time and money on specific auto body projects 05776 - 6 in, 12,000 rpm, hook and loop (Hookit), medium density, dry, no vacuum support, 45 degree, yellow, 5/16"-24 EXT 05779 - 8 in, 3,000 rpm, hook and loop (Hookit), medium density, dry, no vacuum support, 45 degree, yellow, 5/8"-11 thread size 05781 - 8 in, 1,500 rpm, hook and loop (Hookit), medium density, dry, no vacuum support, 15 degree, yellow, 5 bolt holes 05782 - 8 in, 1,500 rpm, hook and loop (Hookit), medium density, dry, no vacuum support, 15 degree, yellow, 6 bolt holes