Choice 1Pc M4 6Pcs Combination Drill Tap & Tap Bit Set, 3-in-1 Anti-Rust Screw Tapping Bit Tool in Metric M

Exquisite Workmanship - Our taps are made of high speed steel, which ensures sharp, fast execution and maintains strength and efficiency. The surface is treated with q titanium alloy, which greatly improves the cutting performance of the drill, more wear-resistant and prolongs the service life. These drill-type bits are must have if you fabricate a lot.

HIGH EFFICIENCY - They are taps with drilling function, three-in-one operation, which can drill, tap, deburr and counter holes on copper, brass, aluminum, metal sheet and plastic at the same time, so as to quickly, Complete work completely, greatly save processing steps and time costs, and improve work efficiency.

HIGH VERSATILITY - Set of 6 drill tap bits in Metric sizes M3x0.5, M4x0.7, M5x0.8, M6x1, M8x1.25, M10x1.5, with 1/4inch hex quick-change shank, fit Electric hand drill, impact drill, bench drill, electric screwdriver and other tap machines.

EASY TO USE - Each tap drill is engraved with its size convenient for you to choose the suitable size with a glance. The convenient 1⁄4-inch (6.35mm) hex shank has a tapered end to prevent excessive knocks. Back taper exceeds the tap to prevent over-drilling and damage to the thread.