13piece or 25piece Twist Drill Bit Set with Cobalt HSS coating for metalworking and wood hole drilling Material and construction Material: Speed Steel (HSS) Coating: Cobalt HSS coated for enhanced hardness and heat resistance Type: Twist Drill Bit DIY Supplies: Metalworking Key benefits Increased durability and longer tool life due to cobalt HSS coating Higher heat resistance helps maintain sharpness during drilling of metal Versatile for drilling holes in metal and wood with reliable cutting performance Clear, easytouse twist design supports consistent hole sizes and clean cuts Why it stands out Coated cobalt HSS provides wear resistance compared with standard HSS bits Available in two convenient set sizes (13piece or 25piece) to cover a range of hole sizes Suitable for common metalworking and woodworking tasks in DIY, workshop, and professional settings 23 practical use scenarios Drilling holes in metal components: suitable for steel plates, brackets, and other metalwork projects where durability and heat resistance are important Woodworking and furniture assembly: capable of drilling through hardwood and softwood for hardware installation and joinery General DIY repairs and fabrication: useful for removing or creating holes in metal and wood during home improvement tasks and small fabrication jobs Brand alignment and purpose Designed for metalworking and DIY tasks that require reliable, durable twist drill bits Fits standard tool use for hole creation in metal and wood applications Provides consistent performance with a durable, longlasting bit set for tools and workshop projects