These have extremely hard tungsten carbide spear tips and should be used at low speeds whilst applying light pressure only.
For drilling glass windows, mirrors, bottles and ceramics.
Lubricate with water for best results.
For use in variable speed drills only.
FAIGD3 - 3mm
FAIGD4 - 4mm
FAIGD5 - 5mm
FAIGD6 - 6mm
FAIGD7 - 7mm
FAIGD8 - 8mm
FAIGD10 - 10mm