PRO multi material set consisting of screwdriver and multi-purpose drill bits. Suitable for drilling wood, plastic, concrete, brick, light building materials, multi-layer materials and masonry. An extended torsion zone absorbs the torque stress at the tip to ensure no breakages. Colour-coded rings and laser markings for easy identification. Heat-treated modified steel ensures screwdriver bits are strong and resistant to high torque. Expert Hex-9 multi construction drill bits have hardwearing cutting edges and carbide tips for additional hardness, and are suitable for concrete, soft tile, steel, softwood and plastics. Flutes efficiently remove chips, therefore helping to extend the lifetime of the bit. Ideal set for interior fitters and installers who need reliable screwdriver bits and drill bits. Supplied in a robust case. For Use with 3-Jaw & 1/4" Hex Chuck Machines on Rotary Action Suitable for Wood, Plastic, Concrete, Brick, Light Building Materials, Multi-Layer Materials & Maso...