The Bosch PRO 18 Piece HSS-G Drill Bit Set is a professional-grade twist drill bit set designed for drilling in metal, wood, and plastics without the need for pilot holes. Ground from premium high-speed steel to DIN 338 standard, these HSS-G bits offer exceptional resistance to wear and heat, making them a reliable choice for construction workers, installers, and contractors who require long-lasting performance in demanding conditions. The set is supplied in a compact Toughbox case measuring 180 x 85 x 45mm, keeping bits organised and protected on site. The 135° split-point tip delivers precise hole placement from the first contact, eliminating drift and reducing the need for centre punching. Suitable for use in alloyed and unalloyed steel, non-ferrous metals, cast iron, plastics, and wood, the cylindrical shank is compatible with standard three-jaw drill chucks. The set includes 18 bits covering diameters from 1mm to 10mm, with several commonly used sizes duplicated for convenience. Bosch states these bits last up to 2x longer than a Bosch PointTeQ drill bit, offering genuine value for trade use. Features and Benefits: • Ground from premium high-speed steel to DIN 338 standard for strength and wear resistance • 135° split-point tip for precise hole starting with no pilot hole required • Resistant to heat build-up during extended metal drilling • Cylindrical shank compatible with standard three-jaw drill chucks • 18-piece set with duplicate sizes for the most commonly used diameters • Supplied in a compact Toughbox case for organised storage and site use Specifications: Net weight: 0.435kg Included diameters: 1, 1.5, 2, 2, 2.5, 3, 3, 3.5, 4, 4, 4.5, 5, 5.5, 6, 7, 8, 9, 10mm Total lengths: 34, 40, 49, 49, 57, 61, 61, 70, 75, 75, 80, 86, 93, 93, 109, 117, 125, 133mm Working lengths: 12, 18, 24, 24, 30, 33, 33, 39, 43, 43, 47, 52, 57, 57, 69, 75, 81, 87mm Case dimensions: 180 x 85 x 45mm Contents: 18-piece HSS-G twist drill bit set to DIN 338 with 135° split-point tips, supplied in Toughbox case. Diameters (mm): 1, 1.5, 2, 2, 2.5, 3, 3, 3.5, 4, 4, 4.5, 5, 5.5, 6, 7, 8, 9, 10. Working lengths (mm): 12, 18, 24, 24, 30, 33, 33, 39, 43, 43, 47, 52, 57, 57, 69, 75, 81, 87.