Bosch HSS-G Extra Length Drill Bit - 4mm, Pack of 5

Introducing the 'Bosch HSS-G Extra Length Drill Bit - 4mm, Pack of 5'; your go-to solution for precision drilling in deep holes through various types of metals and hard plastics. With an incredible length advantage, this drill bit caters to your needs for deep drilling tasks. Featuring a distinctive 135-degree self-centring split-point tip, it promises active, perfect and worry-free centring while eliminating the need for pre-punching or pilot drilling for up to 10mm. This translates to superior precision without any deviation. This set of drill bits has been precision-ground from high-speed steel (HSS) and is engineered to outperform standard ground HSS drill bits markedly. It achieves up to 40% faster drilling rates and requires up to 50% less feed pressure. Designed in line with DIN 340 standards, it's aimed at drilling deep holes in a variety of materials like alloyed and non-alloyed steel, cast steel, cast iron, heat-treated iron, malleable cast iron, non-ferrous metals and hard plastics. This competitive drill bit features a cylindrical shank system, ensuring its diameter is equal to that of the drill bit, hence promising optimal compatibility with drill stands and drill drivers. Includes 5 drill bits in the pack. Specifications: Diameter: 4.00 mm Working Length: 78 mm Total Length: 119 mm Ideal for: Ferrous metals, Steel, Alloyed and Non-alloyed Steel, Grey Iron