DRYGRES 43mm M14 Diamond Drill Bit (6959) RUBI DRYGRES 43mm M14 Diamond Drill Bit (6959) RUBI . DRYGRES drill bits are ideal for drilling stoneware, porcelain stoneware, granite and marble.; The diamond in DRYGRES drill bits is applied using vacuum soldering technology, which increases their resistance to high temperatures and friction. DRYGRES 6-12 mm drill bits are perfect for installing accessories and decorative elements. Other DRYGRES 20-75 mm drill bits allow for professional preparation of holes for water installations, drains, electrical boxes, etc.; DRYGRES drill bits, thanks to the M14 thread, can be used directly on a grinder or, thanks to the adapter (ref. 05976), on a non-impact drill.; The average life of DRYGRES 6-12 mm drill bits is 25 holes, and for 20-75 mm sizes – 60 holes. It ALWAYS depends on the type of material and its thickness, as well as proper cooling and use.; DRYGRES drill bits can drill holes up to 36 mm deep.; DRYGRES 6-12 mm drill bits contain wax inside that melts during use, facilitating the cooling and removal of particles of the drilled material (the drill bits can continue to be used even after the wax has run out. The end of the drill bit's life is only indicated by the complete loss of diamonds).; The side hole in DRYGRES 20-75 mm core bits allows for better cooling and removal of debris after each hole. Remember to clean and inspect the drill bit each time before drilling.; The maximum operating speed of the drill bit is 14,000 rpm.; To ensure a good hole finish and durability of the drill, do not exceed the specified rotational speeds. At the same time, it is recommended to perform circular movements with the drill for better cooling.; Scope of delivery: 1 Piece; Catalog number: 24H 6959. EAN: 8413797069594.