ENDO 6:1. Endodontics without file clamps In combination with an apex locator the compact ENDO 6:1 contraangle handpiece with extra small head facilitates the localization of the apex without the need for a file clamp. Length measurement takes place directly via the handpiece. ENDO 6:1 – the optimal contra-angle handpiece for root canal preparation. Easy connection to an apex locator Depth measurement directly via the handpiece Slimline design and extra small head ISO interface for free choice of the micromotor