3-12 4-32mm HSS Titanium Coated Metal Hex Core Drill Bits High Speed Steel Step Drill Bit Set Cone Hole Wood Cutter Taper Metric

HSS step drill bit set with titanium coating for durability and extended tool life. High speed steel construction ensures efficient cutting performance through various materials including wood, plastic, metal, and more. Versatile size range: suitable for drilling holes from 3-12 mm (metric) or 4-32 mm (imperial) diameter. Set includes both metric and imperial sizes for convenience across international applications. Cone hole design allows easy starting into material and reduces walking when making larger holes.