Straight Flute Taps - Quick down-ward chip removal and smooth tapping experience without blockage, Good cutting effect suitable for through holes and shallow blind holes.
Countersink Thread Tapping Tool - Complete hole drilling, tapping, deburring, and countersinking on different materials such as aluminum alloy plates, copper plates, iron, general steel, and so on.
Screw Thread Tap Drill Bit Set - Can be used with hand tap wrenches, drill presses, tapping machines, CNC, and milling machines, handy for fast tapping, and cutting new threads or repairing damaged threads.