- The S1 contra-angle handpiece has an integrated gearbox which creates reciprocating motion directly in the contra-angle. - This means the instrument rotates alternately with a larger angle in clockwise direction and a smaller angle in anti-clockwise direction. - The unique design with an integrated gearbox facilitating smooth operation. - With the accompanying apex clip you can easy connect the S1 contra-angle handpiece to an apex locator. - S1-E Contra-Angle Handpiece for electric driven systems (40 000 rpm). 1x S1-E Contra-Angle Handpiece, 1x S1 Apex Clip dia.2.0mm, 1x S1 Plus Treatment Pack. **For further product information, please contact Chat Support**