7 Piece Cobalt Center Drill Bit Set With AlCrN Coating M35 HSS Centering Bits For Stainless Steel Cast Iron Alloy Steel Aluminum In Metric 1.0 1.5 2.0 2.5 3.0 4.0 5.0 mm Pro Grade Durable Fast Cuts

7-Piece M35 HSS Cobalt Center Drill Bit Set with AlCrN
✔️ 7 sizes 1.0-5.0 mm, 0.039-0.197 in, AlCrN coated for durability

This 7-piece center drill bit set is built for precision center holes in metalworking. The M35 cobalt bits with AlCrN coating resist heat and wear, ideal for stainless steel, cast iron, aluminum, and alloy steels. The compact case keeps bits organized and portable for job sites.

✅ Sizes: 1.0 mm, 1.5 mm, 2.0 mm, 2.5 mm, 3.0 mm, 4.0 mm, 5.0 mm (0.039-0.197 in)
✅ Material: M35 cobalt steel with 5% cobalt; AlCrN coating for wear resistance
✅ Tip geometry: 118° split point for precise starting hole
✅ Body design: fully ground, sandblasted passivation surface, arcuate spiral groove for chip removal
✅ Durability: curved root reduces breakage and extends tool life
✅ Portability: portable case for easy transport and storage
✅ Application: for stainless steel, hardened steel, carbon steel, alloy steel, cast iron, aluminum, copper, wood

💡 What is a center drill bit set used for in metalworking?

Center drills are handy for starting true, precise holes and reducing wandering when machining.

• Helps align workpieces and prevent wandering in hard metals
• Improves accuracy for subsequent drilling, tapping, or milling
• Coated M35 cobalt bits resist heat and wear for longer life