21 Piece Cobalt Drill Bit Set With TiAlN Coating For Hardened Metal And Stainless Steel Includes Drill Bits From One Sixteenth To One Half Inch And Four Countersink Bits From One Quarter To Five Eighths Inch With Sharp Bullet Tip For Precise Drilling

21-Piece Cobalt Drill Bit Set with TiAlN Coating for Metals
✔️ 21 cobalt bits from 1/16 in to 1/2 in plus 4 countersinks

This rugged cobalt drill bit set is built for metalworking, delivering reliable performance on hardened metals and stainless steel. It includes bits ranging from 1/16 in to 1/2 in and a 4-piece countersink set (1/4 in to 5/8 in) for clean, flush holes.

✅ 21-piece cobalt drill bit set with TiAlN coating for longer life
✅ M35 cobalt HSS construction targets stainless and hard alloys
✅ TiAlN coating boosts hardness and heat resistance for scorching-hot drilling
✅ 3-flute spiral design minimizes vibration for smooth cutting
✅ Sharp self-centering bullet tip starts holes precisely and reduces wandering
✅ Countersink bits (1/4, 3/8, 1/2, 5/8 in) feature 3-flat shanks for solid grip

💡 What is a cobalt drill bit set used for in metalworking and why choose TiAlN coated bits for hardened metals? This handy kit gives you reliable, precise drilling through tough materials.
- Handy for stainless steel, alloy steel, and other hard metals
- TiAlN coating improves wear life and heat tolerance
- 3-flute design reduces vibration for smoother, cleaner holes
- Self-centering bullet tips start holes accurately and reduce wandering