11-pc Carbide Masonry Concrete Drill Bit Set for Stone Tile Brick Ceramic Glass Metal Sheet Plastic Wood, Quick Change 1/4" Hex Shank, Size 3/16" 1/4" 5/16" 3/8" 1/2" with Storage Case

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• PACKAGE INCLUDES:11 pieces fine grade high durable drill bits about 3.8~4.8” in length: 2X3/16"(5mm), 5X1/4"(6mm), 2X5/16"(8mm); 1X3/8"(10mm) and 1X 1/2”(12mm) to meet variety of needs.
• HIGH-QUALITY MATERIALS：Made of Premium carbide YG6X alloy with anti-rust treatment and a reinforced head prevents bit cracking and provides a longer life.
• ACCURATE AND PRECISE: Precision unique cross angle design ground spear tip reduces bit skating and walking; superior tile cutter run through ceramic tile like butter, extremely neat and fast.
• HEX SHANK FOR QUICK CHANGE: 1/4” Hex Shank fits into all power tools more easily and securely; compatible with Milwaukee and other general electric hand drill, bench drill with locking into quick change chuck.
• WIDELY APPLICATION: It is suitable for Glass, Ceramic, Tile, Mirror, Plant Pots, Wood, Porcelain, Brick Wall, marble, thin iron plate etc. Please try to keep the drill vertical and keep bits cool with a flow of cooling water; DON’T use on hard tile.