Carbide Drill Bit Set 5pcs/10pcs 4-12mm Wood Plastic Round and Triangle Shank

Item: 5pcs/10pcs 4mm-12mm Carbide Drill Bit Set Quick Fit Shank  Specification: Diametre 4mm, Total Length 82mm, Blade Length 6mm,Round Shank Diametre 5mm, Total Length 97mm, Blade Length 6mm,Triangle Shank Diametre 6mm, Total Length 100mm, Blade Length 6.5mm,Triangle Shank Diametre 8mm, Total Length 115mm, Blade Length 8mm,Triangle Shank Diametre 10mm, Total Length 118mm, Blade Length 9.5mm,Triangle Shank Diametre 12mm, Total Length 119mm, Blade Length 11mm,Triangle Shank Recommended RPM: 2,000-5,000rpmApplication:  Drilling for masonry, concrete, brick, ceramic tile, wood, plastic, glass etc.. Notice: Dry drilling for soft material like masonry, brick, concrete, wood, PVC plastic Wet drilling for tough material like Ceramic tile, glass Feature:  1.Spiral Groove DesignQuickly remove debris,faster heat dissipation. 2.Special Cutter HeadDrilling faster and smoother,less chipping. 3.High Quality YG6X CarbideBetter wear resistance,longer service life.