The glass drill bit drills precise and exact holes in sensitive and hard materials. The specially ground cutting edge allows a careful drilling process. The life time of this drill can be considerably prolonged by regrinding.
Modern cordless screw drivers are extremely efficient and can also be used for drilling without any problems. The KEILBIT was particularly developed for quick direct application in these machines.
Machine changing is not necessary anymore.
For drilling other materials we offer various types of KEILBIT.
Set a low speed
Cool sufficiently with water, turpentine, vinegar or paraffin
Regrind frequently when drilling in hard materials