THIS IMPLANTOLOGICAL TREPHINE DRILL WITH A I.D. Ø 3,5 MM, LASER DEPTH MARKINGS AND WINDOW, CAN BE USED FOR SAFELY EXPLANTING FRACTURED OR VIOLATED DENTAL IMPLANTS WITH A DIAMETER OF Ø 3,1 - 3,5 MM. IT CAN ALSO BE USED FOR HARVESTING A BONE CORE. DIN-/ISO-SHAFT. STAINLESS-STEEL. DIN-/ISO SHAFT. THIS ROTATING INSTRUMENT HAS BEEN CRYOGENICALLY TREATED TO GIVE IT, HENCE YOU, A SIGNIFICANTLY LONGER SERVICE LIFE !!