115 Piece Cobalt Drill Bit Set For Metal With M35 Alloy Split Point Heavy Duty Pro Grade Bits For Steel Cast Iron And Hard Metals Includes 29 Fractional Sizes One Sixteenth Through One Half 26 Letter Sizes A To Z 60 Numbered Bits 1 To 60

115-Piece cobalt drill bit set for metal
✔️ 115-piece cobalt drill bit set: 29 fractions, A-Z, #1-60

Premium 115-piece cobalt drill bit set designed for metalworking, ideal for drilling through hardened steel, stainless steel, cast iron, and titanium alloys. The high-performance M35 cobalt HSS bits deliver excellent heat resistance and long life, and they come in a rugged metal storage case for easy organization and quick access.

✅ Material: Cobalt High-Speed Steel (HSS) with 5% cobalt for heat resistance
✅ Sizes included: 1/16" to 1/2" in 1/64" increments; 29 fractional, 26 letter sizes (A-Z), 60 numbered (1-60)
✅ Pilot point tip with 135° split point reduces walking and starts holes smoothly
✅ Parabolic flute design enables efficient chip removal and reduces clogging
✅ Compatible with drills and drill presses in standard setups
✅ Heavy-duty metal storage case with labeled compartments for quick access

💡 What is a cobalt drill bit best used for in metalworking?

A handy overview: - Drill through stainless steel, cast iron, and titanium with improved heat resistance - 5% cobalt HSS provides wear resistance and longer life - Pilot point and 135° split point minimize wandering for precise starts - Use at proper speeds and with lubrication for clean, accurate holes