This Bosch EXPERT Self Cut Speed Flat Drill Bit is the 30mm diameter variant, 152mm in length, offering a generous bore size well suited to soil pipes, larger conduit runs, and multi-cable installations in timber-frame construction. Delivering up to 3x faster drilling than the Bosch 2609255269 Spade Bit, the 30mm version is built for high-volume professional applications. The self-feeding threaded tip, powered by Bosch Tip Technology, draws the bit steadily into the workpiece with minimal force required from the user — reducing fatigue significantly on large-scale installation projects. The wave-shaped paddle design keeps chips clearing efficiently, maintaining cutting speed throughout the bore. The 1/4″ impact-rated hex shank ensures a secure, vibration-resistant fit in both impact drivers and drill drivers. Features and Benefits: • Up to 3x faster than Bosch 2609255269 Spade Bit • Self-feeding threaded tip for consistent, low-effort boring • Wave-shaped spade design for high-speed cutting and chip removal • 1/4″ impact-rated hex shank — compatible with impact drivers and drill drivers • Well-suited to soil pipes, large conduit, and multi-cable runs in softwood Specifications: Cutting Diameter: 30mm Length: 152mm