This HSS titanium coated large step taper drill bit is designed for efficient, multi size hole drilling across a range of materials. - Material and coating: High quality HSS steel with titanium coating to reduce friction and heat, helping extend tool life. - Design and compatibility: Large step taper design enables drilling multiple hole sizes with one bit; fits standard drill chucks. - Materials and performance: Suitable for drilling steel, stainless steel, copper, aluminum, brass, wood and plastic with clean holes and less heat buildup. - Practical benefits: Delivers accurate hole sizing, longer bit life in tough materials, and smoother cutting action. - Use scenarios: Metal fabrication and maintenance tasks such as drilling through steel panels or machine frames; automotive or electrical work in aluminum or brass components; DIY projects in wood or plastic to create larger or stepped holes.