5pcs/10pcs 4mm-12mm Carbide Drill Bit Set Quick Fit Shank for Wood PVC

Item: 5pcs/10pcs 4mm-12mm Carbide Quick Fit Shank Drill Bit Set Specification: Diameter 4mm, Total Length 95mm, Blade Length 5mm, Shank Diameter, Quick Fit Shank Diameter 5mm, Total Length 95mm, Blade Length 6mm, Shank Diameter, Quick Fit Shank Diameter 6mm, Total Length 95mm, Blade Length 7mm, Shank Diameter, Quick Fit Shank Diameter 8mm, Total Length 116mm, Blade Length 8mm, Shank Diameter, Quick Fit Shank Diameter 10mm, Total Length 119mm, Blade Length 9mm, Shank Diameter, Quick Fit Shank Diameter 12mm, Total Length 119mm, Blade Length 11mm, Shank Diameter, Quick Fit Shank Recommended RPM: 2,000-5,000rpm Application:  Drilling for masonry, concrete, brick, ceramic tile, wood, plastic, glass etc.. Notice: Dry drilling for soft material like masonry, brick, wood, PVC plastic Wet drilling for tough material like tile, glass Feature:  1.Spiral Groove DesignQuickly remove debris,faster heat dissipation. 2.Special Cutter HeadDrilling faster and smoother,less chipping. 3.High Quality