Built Tough Step Drill Bit Set With Fifteen Progressive Steps From One Quarter Inch To Two And One Half Inches M35 HSS Cobalt TiAlN Coating Delivers Sixty Eight Percent Faster Drilling And Four Hundred Fifty Percent Longer Life One Half Inch Shank

Premium step drill bit set with 15 progressive sizes for efficient metal drilling
✔️ M35 HSS cobalt with TiAlN coating for 68% faster drilling and 450% longer life than standard bits

This step drill bit set is a handy tool for creating precise, burr-free holes in materials like metal, wood, plastic, and aluminum. It's typically used in workshops, automotive repairs, and home DIY tasks where quick size adjustments are needed.

✅ 15 progressive steps from 1/4 inch to 2-1/2 inches for versatile drilling without bit changes
✅ M35 HSS cobalt construction resists heat and wear for tough jobs
✅ TiAlN coating enhances speed by 68% and extends lifespan by 450%
✅ 1/2 inch shank fits securely in various drills for stable performance
✅ Warranty offers easy replacement for peace of mind

💡 Why use cobalt step drill bits for drilling hard metals?
The answer starts with understanding their role in heavy-duty applications. Here's a breakdown:
- They handle high temperatures better than regular bits, preventing breakage on steel
- The coating reduces friction for smoother cuts and less effort
- Ideal for pros needing reliable tools that save time on-site
- Offers cost savings over time with fewer replacements needed