MultiFunction Countersink Chamfer Tool Crafted from speed steel with titanium coating for exceptional toughness and longevity across wood and metal applications. The coneshaped tips provide accurate centering while enlarged spiral flutes facilitate smooth chip removal, delivering clean professionalgrade finishes. Compatible with table drills, milling machines, cordless drills, and drivers for versatile drilling projects. Comprehensive 4Piece Drill Bit Set Includes four essential sizes (25mm, 510mm, 1015mm, and 1520mm) to handle any countersinking job from small accuracy work to larger industrial applications. Each countersink drill bit features accuracy engineering with cutting edges for consistent performance across various materials including hardwood, softwood, aluminum, and steel. Long Lasting Construction with Titanium Coating Advanced titanium coating reduces friction and heat buildup while extending tool life significantly compared to standard bits. The speed steel core maintains sharpness longer and resists wear even under heavyduty use. for both professional contractors and DIY enthusiasts seeking reliable performance. Versatile Compatibility for Multiple Applications Works seamlessly with bench drills, drill presses, milling machines, and power drivers for countersinking screws, deburring holes, and creating smooth chamfered edges. Note: Designed for bench drilling operations with continuous cooling (water, cutting oil, or compressed air) not recommended for handheld drill use. Use scenarios Countersinking screw holes in hardwood or softwood cabinet installations to create flush, clean finishes. Deburring and chamfering edges on aluminum and steel components in metal fabrication. Creating smooth chamfers on panels and furniture parts when using a table drill or milling machine.