Hard Metal Countersink Drill Bit Set With AlTiN Coating For Stainless Steel And Alloys By Ezarc 82 Degree Five Flute Design One Quarter Inch Hex Shank Includes One Quarter Three Eighths One Half Five Eighths And Three Quarter Inch Bits Five Pieces

AlTiN Countersink Drill Bit Set for Hard Metals, 82° - five-piece
✔️ 5-flute design, AlTiN coated, 82° countersink bits for hard metals

This five-piece countersink drill bit set features a high-hardness AlTiN coating to stand up to stainless steel and tough alloys, delivering precise chamfers and deburring in metalworking applications.

✅ 82-degree countersink angle with 5-flute geometry for smooth, burr-free cuts
✅ AlTiN coating delivers extreme hardness, heat resistance, and low friction
✅ 1/4" hex shank for quick-change compatibility with drills and drivers
✅ Includes five bits: 1/4" (6.35 mm), 3/8" (9.525 mm), 1/2" (12.7 mm), 5/8" (15.875 mm), 3/4" (19.05 mm)
✅ Optimized for stainless steel, alloy steel, and other hard metals

💡 What is a handy long-tail question about countersink drill bits with AlTiN coating for stainless steel and tough alloys? Here's a quick answer to help buying decisions.
- How does AlTiN coating extend life in hard metals?
- Which bit sizes are included and how do the mm equivalents help with setup?
- Why is a 1/4 inch hex shank a smart fit for most drills and drivers?