It has gauges to measure document thickness and coil sizing. The HD 4170 can be used as a stand-alone production coil inserter or it can be attached to any vertical OD or HD Series machine (optional mounting kit available). Designed for fast coil insertion for all pitches and diameters, from 6mm up to 50mm diameter Coil. The HD4170 comes with crimper pliers and a built-in holder.