Bit holder with Rapidaptor quick-release chuck for fast, tool-free bit change. Features ergonomic, multi-component Kraftform handle with hard zones for high working speeds and soft zones for high torque transfer. Helps avoid blisters and calluses. Suitable for bits with 1/4" external hexagon drive. Chrome Molybdenum Steel Construction Ergonomic Handle Hexagonal Anti-Roll Feature Strong Permanent Magnet For Secure Hold Chrome Molybdenum Steel Construction Ergonomic Handle Hexagonal Anti-Roll Feature Strong Permanent Magnet For Secure Hold