Standard drill bits often overheat and dull quickly when tackling tough sheet metal or hard wood projects. This high-speed steel (HSS) set provides the precision and durability needed for consistent, professional results without frequent replacements. Whether you are a DIY enthusiast or a professional contractor in Nairobi, these spiralbohrer bits ensure clean holes every time.Material: Premium High-Speed Steel (HSS) for extreme heat resistance.Quantity: 5-piece set covering essential sizes.Sizes Included: 4mm, 5mm, 6mm, 8mm, and 10mm diameters.Application: Optimized for sheet metal, aluminum, plastic, and timber.Design: Precision spiral flute for efficient chip removal and faster drilling.Storage: Compact, hard-shell indexed case for easy organization and portability.