Power Custom Brass Muzzle Crowning Lap - Non-Handled Fits Bore .17-6.5mm Tip Radius 5/32''''(3.96mm)

Four different sizes of brass laps produce a beautiful, finished crown on all pistol and rifle barrels when used with 600 grit silicon carbide abrasive and your hand drill. Mfg: Brownells SPECS: Brass. 3'''' (7.62cm) long. Sets include (4) laps, one of each size.