FEWELL 3Pcs HSS Titanium Coated Step Drill Bit Set 1/4" Hex Shank M2 High Speed Metal Step Drill Bit for Plastic, Wood, Sheet Metal Hole Drilling

【M2 High Speed Steel Coated】The durable step drill is made of HSS M2（6542） , far better than 4241.Ensures durability and sharpness，corrosion and rust resistance, for longer cutting edge life even at extreme temperatures.

【HSS titanium coating】The surface is treated with a titanium alloy, which greatly improves the cutting performance of the drill bit, is more wear-resistant, and extends the service life.

【Efficient Design】118° X split point tip and two-flute design provides a smoother cutting, allows the material particles escape easily for a much more clean drilling operation

【Total 29 Step Sizes】3 drill bits, 29 sizes, our drill bit set includes 3 standard step drill bits, capable of drilling 29 holes of different diameters, thus saving your time and effort.

【Application】Iron,stainless steel, hardened metal, mild steel, galvanized steel, aluminum, copper, plastic, wood，resin etc。The drill step bit suitable for pistol drill or bench drill, cooling water to extend its service life.

Fast and Precise Cutting：Unibit step drill bit with 118°X split point improves the cutting speed with self-centering and prevents walking to keep the step drill bit stable boosting the efficiency.

Quick Change：1/4'' hex shank titanium drill uses a double-edged design to make cutting smoother and smoother,Fits into power tools chuck securely and eliminates slip，compatible with all kinds of drilling machines.

M2 HSS & Titanium Coating：M2 has 50% more Tungsten and 150% more Molybdenum, both of which are key elements in improving durability. Our additional Vacuum heat treatment and Nitride surface hardening treatment make the performance even better.