The Bosch 8 Piece Impact Control Hex Shank HSS Drill Bit Set is a professional-grade twist drill bit set designed for drilling in metal using a drill driver or impact driver. Ground from premium high-speed steel (HSS-G), these bits deliver lasting resistance to wear and heat, making them a reliable choice for contractors and installers working with alloyed and unalloyed steel, non-ferrous metals, cast iron, plastics, and wood. Bosch states they last up to 2x longer than the Bosch PointTeQ drill bit. The impact-rated ¼” hex shank ensures a secure fit and maximum torque transmission, whether you’re working with a three-jaw chuck or a quick-release hex tool holder. This makes them particularly well suited to high-demand site work where efficiency and precision matter. The 135° split-point tip allows accurate hole starting without the need for a centre punch, reducing slippage and improving positional accuracy on smooth or curved metal surfaces. This set covers eight diameters from 2mm to 10mm, providing a versatile range for general metalwork, fixing installation, and fabrication tasks. Features and Benefits: • Lasts up to 2x longer than a Bosch PointTeQ drill bit for extended service life • HSS-G construction ground from solid steel for durability and fast drilling progress • 135° split-point tip for precise hole starting without centre punching • Impact-rated ¼” hex shank for maximum torque transmission and secure tool holder compatibility • Compatible with three-jaw chucks and ¼” internal hex tool holders • 8-piece set covering 2mm to 10mm for versatile metalworking applications Specifications: Diameters: 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 10mm Total lengths: 60mm, 72mm, 83mm, 91mm, 98mm, 109mm, 117mm, 133mm Working lengths: 24mm, 33mm, 43mm, 52mm, 57mm, 69mm, 75mm, 87mm Set dimensions: 22mm x 115mm x 235mm Net weight: 0.164kg Contents: Impact Control HSS-G drill bits: 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 10mm