Description:

[4in1 Size]: Drilling Diameter: 3mm, 4mm, 5mm, 6mm. [Great Performance]: Accurately drill a smooth hole and fast discharge chips.. [Universal Shank]: Straight round shank is the most common style on modern drill bits.. [Better Combination]: Hex wrench can adjust the counter sleeve depth, drilling any holes you want. Accurate centering for sharp and precise countersinking, non-slip.. [Wide Application]: Perfect for wood, fiberboard, particleboard, plywood, tile, PVC, rubber, granite, quartz, vitrified brick etc. Suitable for bench drill, hand drill and conventional electric drill..