Our ShockWave™ Impact Duty™ carbide multi-material bellhanger bits are the most versatile bellhanger bits, designed to tackle materials such as brick, block, concrete, steel, aluminum, ceramic tile, backerboard, wood, PVC, and drywall for small wire system installation. Designed with a hole in the tip for cable and wire pulling applications when installing computer, security, phone, and cable systems. These installer bits, standing at 18 in length, provide extra reach for complete through-hole applications. The bits feature an aggressive multi-grind carbide tip, which delivers up to 10x longer life in stacked materials and up to 85% faster drilling speeds in metal. Equipped with a 1/4 in hex shank, these general-purpose bits are compatible with impacts, drill/drivers, and hammer drills. Milwaukee® ShockWave™ Impact Duty™ multi-material bellhanger bits provide the ideal all-in-one solution for wire-pulling applications. Milwaukee® 48-20-8860 ShockWave™ Impact Duty™ Carbide Bellhanger Multi-Material Bit, 1/4 in x 16 in x 18 in