Clover® Silicon Carbide Grease Mix, 1 lb, Can, 400 Grit ORS NASCO and flexibility Kevlar Sewn Straight thumb and flexibility Kevlar Sewn Straight thumb Used to provide leverage on hand operated valve wheels Permits a smooth snap hammer action to make opening and closing stubborn valves easy The special shaped opening in the wrench reduces the chance of slippage when working in overhead or crowded positions Standard abrasive paste for fast metal removal Produces a smooth flat surface but not a polished one Leaves a rust preventing film on lapped surfaces Uses include lapping and honing and grinding activities for valve seats