The Bosch PRO Extra Length Formwork and Installation Drill in 30mm x 400mm is the largest-diameter 400mm option in the range, designed for heavy-duty installation work requiring a 30mm hole through layered building materials. The wide cutting diameter demands robust HSS construction, which this bit delivers alongside a tapered flute that keeps performance smooth and jam-free even in moist or dense hardwood. Features and Benefits: • HSS construction for durability and heat resistance • Tapered flute resists jamming in moist wood • Cylindrical shank fits standard three-jaw chucks Specifications: Diameter: 30mm Length: 400mm
