The drill shank cuts the threedimensional triangular, so that the electric drill clamping is more tight and the drilling does not slip.
High quality high speed steel material, strong toughness, wear resistance.
Ushaped spiral grooves, conducive to drilling more smoothly, convenient to use.
Widely used in glass, ceramic tile, plastic, wood and other materials drilling.
Including 5pcs drill bit of the package, meeting your different needs.
