CENTURY'S WIRE BRUSHES - DRILL RADIAL WIRE BRUSH IS MADE FROM HEAT TREATED STEEL WIRE FOR CLEANING IN CREVICES AND CONTOURS. 1/4"" QUICK CHANGE SHANK. CENTURY'S RADIAL WIRE BRUSHES HAVE HEAT-TREATED STEEL WIRES IDEAL FOR REMOVING RUST PAINT AND WELD SPATTER ON ALL TYPES OF METAL PARTS OR SURFACES ENSURING CLEAN AND SMOOTH FINISHES THE CRIMPED WIRE TYPE ENSURES RELIABLE PERFORMANCE ON HEAVY GRINDING APPLICATIONS AND IS ENGINEERED FOR SAFE OPERATION AT SPEEDS UP TO 4500 RPM PERFECT FOR SURFACE CLEANING AND EASILY DEBURR AND CLEAN THE INSIDE AND OUTSIDE OF PIPES VALVES AND OTHER FITTINGS. PERFECT FOR CLEANING ENGINE HEADS AND COMPONENTS THE WIRE BRUSH DIAMETER IS IDEAL FOR PRECISION WORK WITHOUT COMPROMISING PERFORMANCE OFFERING DURABILITY AND EFFICIENCY FOR BOTH PROFESSIONAL AND DIY USERS FEATURES A 1/4"" QUICK CHANGE SHANK THAT FITS STANDARD DRILL CHUCKS ENSURING EASY INTEGRATION INTO ANY TOOLKIT