7PCS Professional Drill Bit Set For Concrete Drill Bit & Masonry Drill

*USA Seller - Quick Postage - Same Day Dispatch EVERY customer is important to us we will do our best to ensure that your experience Brand New High Quality - Fast Shipping Made of fine quality material, low resistance, high hardness, improving work efficiency. The design of triangle shank makes the clamping more tight and does not slip. U-shaped spiral is smooth and flat, and the drilling is smoother. Strong toughness and wear resistance, can be installed in electric drills. Provides smooth and accurate drilling in tile, brick wall, wood and so on. Total length: 3mm cutting diameter: 80mm / 3.1in 4mm cutting diameter: 80mm / 3.1in 5mm cutting diameter: 80mm / 3.1in 6mm cutting diameter: 100mm / 3.9in 8mm cutting diameter: 110mm / 4.3in 10mm cutting diameter: 120mm / 4.7in 12mm cutting diameter: 120mm / 4.7in Features: Type: Drill Bit Material: Hard Alloy Quantity: 7Pcs/Pack Tool Holder Type: Triangle Handle Cooling Type: Outer Cold Blade Top Corner: 135° Category: Hole expansion drill Size: 3mm, 4mm, 5mm,6mm, 8mm,10mm,12mm Weight: Approx. 150g Package includes: 1 x 7Pcs Set (3 4 5 6 8 10 12mm)

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