With just one head, EWN 2-50XL Boring Kit offers precision boring solution for diameter range of .700–6.000 in. Kit features rigid, dynamic center-mounted boring bar/insert holder capable of maintaining consistent precision throughout full range. Boring head offers adjustments of Ø.0002 in./div, and coolant through is standard with max pressure of 300 psi. When using outboard insert holders, coolant nozzle inserts to center of head for direct coolant delivery to cutting edge.