KASTWAVE Large HSS Steel Step Cone Drill Titanium Bit Set Hole 4-12/20/32mm dint, Perfect Step Drill Bits suitable for drill holes in various material, High-Speed Bit Set

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🔧 Drill Smarter, Not Harder — The Ultimate Step Bit Set for Precision Pros

The KASTWAVE Large HSS Steel Step Cone Drill Titanium Bit Set features three versatile step drill bits ranging from 4mm to 32mm, crafted from high-speed steel with a titanium nitride coating for enhanced durability and corrosion resistance. Designed with a two-flute cutting edge and high-step stops, it ensures smooth, precise drilling without over-sizing holes. Compatible with all standard 1/4" hex shank drills, this set is ideal for professionals and DIYers working on iron, copper, aluminum, wood, PVC, and insulation boards up to 5mm thick, making it a must-have for efficient, multi-material hole drilling.