Description : . extra-long twist allows drilling of deep holes;
. screw slots facilitate the quick removal of chips;
. precision made and sharpened, the surface is protected against dents;
. very flexible, has better resistance to fatigue cracking;
. self-centring tip prevents slipping;
. hex shank to increase grip in wrench drills;
. designed for wood and wood-like materials, particle boards and
fibreboards.