Diablo 5 In. 120-Grit Universal Hole Pattern Vented Sanding Disc with Hook and Lock Backing (50-Pack) grills it has a 5-pin tumbler

it has a 5-pin tumbler key and removable cylinder for maximum pick resistance and convenient re-keying

resharpenable high speed steel blades for straight edging or framing applications

square holes in base to accommodate 1/4" carriage bolts to help prevent unauthorized access

Easily held with 1 hand while steadying new plank for nailing

and other warehouse trucks and carts

Diablo 5 In. 120-Grit Universal Hole Pattern Vented Sanding Disc with Hook and Lock Backing (50-Pack) grills it has a 5-pin tumblerPremium ceramic blend, a superior quality formulation designed for fast material removal and long sanding life. 12 hole universal hole pattern, a one size fits all design (fits all 5 and 8 hole sanders) for fast and precise alignment. Premium hook and lock backing enables repeated attachment and removal of discs for a consistent secure connection. Clog SHIELD, a proprietary blend of grinding agents, reduces pitch built up and clogging. ENDURA BOND,