GREENLEE HW1 High Torque 1/2" Impact Wrench with 7/16" Hex Quick Change Chuck w/ Adapter

Impact and temperature resistant replaceable polymer grip designed to dissipate heat from the cast handle;Weight reduction of 14% to previous models;Improved center-of-gravity for superior ergonomics;Increased service life with the addition of back-up rings and larger O-rings;Built-in hydraulic check valve to eliminate damage from an improperly connected tool;Large and strong lifting eye for easy and secure storage;Longer and wider trigger provides improved control with insulated gloves;Fast and easy change between open-center systems and closed-center systems with no disassembly required;Higher breaking torque in reverse to ensure you can remove tighted bolts;Cast motor enclosure that better protects the impact mechanism operation versus competing models with stamped steel enclosure