GREENLEE MAS-1/4 1/4" Greenlee Masonry Bit

Masonry bit. One piece hardened carbon steel body and hex shank for a stronger, more concentric bit that will not disassemble when drilling in deep or tough materials. Carbide grade tip for faster penetration and longer bit life. Hammer drill rated for use in either standard or hammer drills. 1/4 inch quick-change hex for fast bit changes. Use in quick-change chucks, conventional adjustable drill chucks and hex adapters for more versatility. Set includes diameters and lengths most commonly used by electricians.