30K Focused Spray PowerLINE FitGrip Ultrasonic Insert-3. For dental professionals seeking improved comfort and performance, Cavitron inserts give you the confidence of an ergonomically designed grip. Eliminates calculus and dental biofilm. Offers effective lavage for an optimal clean. Large-diameter handle for comfort and maintained tactility. Avoids slippage for more grip stability. Dentsply Cavitron FSI Powerline FitGrip is a revolutionary ultrasonic insert that is used in the maximum removal of light to moderate dental plaque and tartar, especially with its Focused Spray system for excellent irrigation. This instrument features a thinner tip that provides increased access and visibility during scaling procedures.With its FitGrip design, this insert offers a cushion to reduce finger fatigue while guaranteeing consistent tactile sensitivity for enhanced accuracy during procedures. Cavitron FSI Powerline FitGrip is used in conjunction with the magnetostrictive ultrasonic scaler units and runs at low to high power levels with its Powerline technology.