Keil is Germany's leading professional drill bit manufacturer.

The Keil, OPAL Masonry Drill Bits feature a chipless spiral flute for optimal dust removal during drilling, these drills feature a special grade of European carbide for general construction materials. The tips are high quality European standard tungsten carbide fixed with high-temperature soldering at 1,120 degrees centigrade for high-performance peace of mind. Wear-resistant high-speed drilling with very long service life, suitable for use in any chuck based impact or rotary drill system.