Description Instruments for sinus lift by the crestal approach. Delivered with TKW1, TKW2, TKW3, TKW4, TKW5 tips. Clinical applications Developed for sinus lift by the crestal approach, the IntraLift® kit makes it possible to realize non invasive surgery in full safety. The diamond-coated tips, of increasing diameters (from 1.35mm to 2.80mm), are designed to drill and widen gradually the access canal to the Schneider membrane. The sterile spray cools down the tips to avoid any rise in temperature, which could lead to tissue damage. The membrane elevation is achieved using the TKW5 by means of microcavitation.