The Bosch 5 Piece Concrete Drill Bit Set is a professional-grade masonry drilling kit, offering a versatile selection of CYL-3 drill bits designed for lasting performance in concrete and natural stone. Each bit in the set features a specially developed carbide blend, manufactured by Bosch to withstand the demands of repeated use. The hardwearing composition delivers high wear resistance when drilling into abrasive materials, making these bits well suited to fixing work in concrete walls, blocks, and natural stone substrates. The effective 2-flute U-shape design promotes efficient dust removal during drilling, reducing friction and heat build-up to extend bit life. Each bit uses a cylindrical shank, ensuring compatibility with standard three-jaw drill chucks on both corded and cordless impact drills. As further assurance of quality, every bit bears the PGM Masonry Drill Bit Association Board test mark, confirming compliance with tight tolerances for accurately drilled holes and the firm hold of fixings. Features and Benefits: • CYL-3 carbide blend specially developed by Bosch for high wear resistance in concrete • 2-flute U-shape design promotes efficient dust removal, reducing friction and heat build-up • Cylindrical shank compatible with standard three-jaw drill chucks • Suitable for corded and cordless impact drills • PGM test mark guarantees tight tolerances, accurate drilling, and secure fixing hold • Five-piece set covering a range of diameters from 5mm to 8mm Specifications: Diameters: 5mm, 5.5mm, 6mm, 7mm, 8mm Total lengths: 85mm, 85mm, 100mm, 100mm, 120mm Working lengths: 50mm, 50mm, 60mm, 60mm, 80mm Net weight: 0.150kg Contents: 5-piece CYL-3 concrete drill bit set Included diameters: 5mm, 5.5mm, 6mm, 7mm, 8mm Included working lengths: 50mm, 50mm, 60mm, 60mm, 80mm