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Greenlee HW1 Impact Wrench

Greenlee HW1 Hydraulic Impact Wrench
Our Price: $1,356.70

Availability: Back Order
Product Code: HW1


This high torque, high speed Greenlee HW1 hydraulic impact wrench features an industry leading torque and speed. With a high strength casting, reduced weight, and widened trigger design, these wrenches turn at up to 6,500 rpm and can drill holes through hardened poles in seconds rather than minutes. This impact wrench has the torque (500ft.-lb.) to break most rusty pole hardware free.

HW1 hydraulic impacts are equipped with a 7/16 inch hex quick change chuck for use with all major brands of impact bits as well as the Greenlee NR1 and NR2 nut runner sockets.


  • Impact and temperature resistant replaceable polymer grip designed to dissipate heat from the cast handle
  • Weight reduction of 14 percent to that of previous models
  • Improved center of gravity for superior ergonomics
  • Increased service life with the addition of backup 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 tight bolts
  • Cast motor enclosure that better protects the impact mechanism operation versus competing models with stamped steel enclosure


  • Capacity: 7/16 inch hex
  • Drive Size: 1/2 inch when using 49314 adapter
  • Flow Range: 4 - 12 GPM (15 - 46 LPM)
  • Handle Type: Impact and temperature resistant replaceable polymer grip
  • Hydraulic System: Super spool selector for open and closed center systems
  • Includes: 7/16 hex quick change chuck and 49314 heavy duty adapter
  • Operating Pressure: 1000 - 2500 PSI (69 - 170 BAR)
  • Optimum Flow Range: 5 - 8 GPM (19 - 30 LPM)
  • Pressure Port: 9/16-18 SAE O-ring
  • Return Port: 3/4-16 SAE O-ring
  • Torque Rating: 500 FT-LB At 8 GPM (677 N-M At 30 LPM)
  • Weight: 6.5 LB (2.930 KG)
  • Length: 8.2 inch
  • Height: 11 inch
  • Width: 4.2 inch

Parts and Instruction Manual

Cat# HW1
UPC# 00373
Mat# 52060635

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