Marathon Handpiece Model# SDE-SH37L1. Max Speed: 35,000rpm. Torque: 3.2 Ncm

Marathon is one of the oldest manufacturers of micro motors for dental.  the Handpiece Weight: 220g. Dimension: (L)149.3mm x (D)27.8mm. Lesser noise & Vibration. This is one of the strongest and fastest Handpieces out there.