Pro Grade M35 Cobalt Countersink Drill Bit Set For Metal Wood Stainless Steel, Heavy Duty Five Flute Design, One Quarter Inch Hex Shank, 6pc Countersink Bits For Auto Repair And Marine Use, High Heat And Rust Resistance By SQLMLZ
✔️ Five-flute design with 1/4 in hex shank, 6pc set
This heavy-duty countersink bit set is built for metal, wood, stainless steel, and composites, helping you create clean chamfers and flush screw heads. Commonly used in auto repair and marine projects, it performs reliably under demanding conditions.
✅ M35 HSS cobalt-coated bits deliver superior heat and rust resistance for long life in tough metalworking tasks.
✅ Five-flute design reduces vibration and improves tool life.
✅ Includes 1/4" hex shank, compatible with most drill chucks and bit holders.
✅ 82° countersink tips provide precise seating across multiple materials.
✅ Sizes included: 1/4, 5/16, 3/8, 1/2, 5/8, 3/4 inch; includes bit holder and storage toolbox.
✅ Max speed 6000 RPM for controlled, clean countersinking.
💡 What is a countersink drill bit used for and why pick a cobalt version?
It's a handy tool for creating chamfers and flush seating in tough materials.
- Long-lasting M35 HSS cobalt coating boosts heat resistance in metal
- 82-degree countersink angle ensures precise seating across metals and wood
- 1/4-inch hex shank works with most drills and bit holders
- Ideal for auto repair and marine projects needing clean, flush finishes