EZARC Countersink Drill Bit Set

EZARC Obsidian Countersink Drill Bit Set for Hard Metal, Titanium Aluminum Nitride Coated Counter Sink Drill Bit with 1/4" Hex Shank, 82 Degree 5 Flutes Design, 1/4” 3/8” 1/2” 5/8” 3/4”, 5PCS; EZARC Countersink Drill Bit Set, 12 PCS Counter Sink Drill Bit Adjustable, #4, #6, #8, #10, #12, Magnetic Extension bit Holder for Woodworking with Storage Box

• Longer-Lasting AlTiN Coating: Premium AlTiN coating delivers extreme hardness, heat resistance, and low friction—ensuring long-lasting durability for countersink drill bit set and precise metal finishing.
• Optimized for Hard Metals: Engineered for stainless steel, alloy steel, and other hard metals. Designed specifically for hard materials, it may not deliver the same surface finish on softer metals.
• 5-Flute Design for Smooth Cuts: Five-flute geometry reduces vibration, distributes cutting forces evenly, and ensures stable, smooth cuts with minimal burrs—perfect for counter sink bit for hard metal.
• Countersinking & Deburring: Ideal for chamfering hole edges, deburring, and creating flat countersunk seats on pre-drilled holes. Works seamlessly with countersink drill bit set.
• Universal Quick-Change Hex Shank: 1/4" hex shank fits drills and electric screwdrivers securely. Quick-change design saves time and ensures easy, precise use with countersink drill bit.