29 Piece Twist Drill Bit Set With Five Percent Cobalt M35 For Hardened Steel Cast Iron And Tough Metals Jobber Length Fully Ground Includes Sizes One Sixteenth To One Half Inch
✔️ Fully ground M35 cobalt bits, 1/16 to 1/2 inch, jobber length
This 29-piece drill bit set uses premium 5% cobalt M35 high-speed steel for extended tool life when drilling hardened materials like stainless steel, cast iron, and tough alloys. Standard jobber length provides a balanced reach and rigidity for general purpose drilling. The set covers 1/16 to 1/2 inch in 64th increments for precise hole sizes. Fully ground bits meet ASME/ANSI B94.11M standards to reduce friction, improve chip flow, and hold lubricant for smoother drilling. The 135-degree chisel with split point prevents walking for quick, accurate starts. An indexed metal case keeps the bits organized and protected for easy transport and selection.
✅ 29-piece cobalt drill set (HSS M35) with 5% cobalt for tough metal drilling✅ 1/16" to 1/2" sizes in 64th increments for precise holes
✅ 135-degree split-point design reduces walking and speeds start
✅ standard jobber length balances reach and rigidity
✅ fully ground per ASME/ANSI B94.11M for consistent cutting
✅ indexed metal case keeps bits organized and portable
💡 What is a cobalt drill bit set with 5% M35 best for when drilling hardened metals? Handy for tough jobs, it boosts tool life and performance.
- Useful for stainless steel, cast iron, and other hard alloys
- Split-point design helps prevent wandering and ensures a clean start
- Ideal for professional shops and serious DIY projects