3-12 Mm Tile Triangular Drill Bit Set 7Pcs Ceramic Concrete Drilling ToolOOTDTY Features: ● Uses cemented carbide tools.● Drilling is smooth and full, no vibration, easy to place● The incision resistance is small, the working speed can be increased, and the operation is convenient.● Used in ceramics, mirrors and glass plates.● Compatible Equipment: 1/4" Lithium Drill/Hand Drill/Bench Drill● Drilling Size: 3mm 4mm 5mm 6mm 8mm 10mm 12mm● Material: CarbideSpecification: Material: YG6 Cutter Head Primary Alloy + 45# Carbon Steel Body + Plastic Spray SurfaceColor: GoldSize1: Approx.3x3.8cm/1.18x1.49inchSize2: Approx.3x4cm/1.18x1.57inchSize3: Approx.2.9x4.6cm/1.14x1.81inchSize4: Approx.2.9x4.7cm/1.14x1.85inchSize5: Approx.3x5.1cm/1.18x2inchSize6: Approx.3.3x5.3cm/1.29x2.08inchPackage Included: 7pcs Triangle DrillNote: 1. Please allow 1-2mm errors due to manual measurement, please make sure you do not mind before ordering.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item.