Two Stage Step Drill Bit Stainless Steel Pro Grade For Copper Aluminum Stainless Steel Titanium Alloy Variable Diameter Countersunk Head Chamfering And Hole Drilling 3.4 To 6.5mm Range 90 Degree Shank High Speed Helix Long Life

Two-Stage Drill Bit Set for Metalworking, 3.4-6.5mm
✔️ Size: 3.4-6.5 mm; 90° shank; 3-piece set; high-speed helix

These durable two-stage drill bits are designed to punch clean, precise holes in metal and tougher materials. Great for copper, aluminum, stainless steel, titanium alloys, and plastics, they excel in fabrication, automotive, and DIY projects.

✅ Long tool life with reduced heat buildup during drilling
✅ Speed helix design enables faster cutting than standard bits
✅ Compatible with copper, aluminum, stainless steel, titanium alloys, plastics, and wood
✅ Includes 3-piece set with 3.4-6.5 mm range and 90° shank 6.5mm

💡 What is a two-stage drill bit best used for in metalworking?

It's handy for creating clean holes and chamfers in tough metals. - Handy for drilling copper, aluminum, stainless steel, titanium alloys - Reduces heat and extends life during high-temp drilling - Fits standard drill chucks with a 90° shank for easy use - Great for DIY, automotive, and fabrication tasks