Hi-Spec 99pc Titanium HSS Drill Bit Set for Metal and Wood

Upgrade your toolbox with the Hi-Spec 99pc drill bit set, designed for efficient everyday DIY projects. These round-shank twist drill bits are engineered from high-speed steel alloy (HSS4241), allowing them to cut faster and withstand higher temperatures while retaining hardness longer than standard carbon steel. Each bit features a long-life gold titanium coating for enhanced durability. This comprehensive set includes 14 metric sizes, covering the most frequently used diameters for drilling into soft metals like aluminium and mild steel, as well as wood, plastics, and plasterboard. Whether you are working on home repairs or general maintenance, these bits provide the accuracy and speed needed to get the job done. Please note that these bits are not suitable for use on hardened or heat-treated steel.