Mavaol Premium Step Drill Bit Set With 4 Flutes And Cobalt M35 Steel For Stainless Steel Hard Metal Drilling Plus Standard Twist Bit Kit Ultimate Heavy Duty Hole Punching Tool For Pros

Professional Step Drill Bits M35 Steel 4 Flutes For Metal Work
✔️ M35 Cobalt Steel 1/4 Inch Shank 4 Flutes Drill Bits Alloy

This kit contains one standard twist bit plus five stepped variants designed for piercing holes in sheets. They work well for automotive repair panels and general fabrication tasks using handheld power tools.

✅ Sizes extend from 1/8 up to 1 3/8 inches for sheet metal work
✅ M35 cobalt blend reaches 89HRC surface hardness for durability
✅ Secure 1/4 inch drive fits most handheld drills immediately
✅ Handles stainless steel plastic aluminum copper and wood sheets cleanly

💡 What Makes Cobalt Drill Bits More Durable Than HSS Options?
They handle heat better and retain their edge longer under pressure.
- Higher resistance to abrasion prevents dulling quickly on tough metals
- Better performance ensures fewer changes during extended drilling sessions
- Ideal for frequent use where standard bits wear out fast on steel surfaces