- Alto Surge is a versatile contra-angle for implantology and bone surgery including implant screwing, the drilling, and polishing of ridge. - Adaptable to any motor type with a connection according to ISO 3964 (EN 23964), it offers 2 reduction ratio (20:1 and 100:1) and external and internal irrigation through the bur according to the Kirschner technique. **For further product information, please contact Chat Support**