Hitachi Power Tools

Hitachi: Inspire the Next

WR16SA 1/2" Square Drive Impact Wrench

  • Class leading torque- 270 ft-lbs for maximum power
  • Powerful 4.2 Amp, 480 W motor to handle stubborn fasteners
  • Forward-reverse rocker switch to quickly change fastening direction
  • Covered in soft, yet durable elastomer for improved durability and a non-slip grip
  • Large bumper protects the tools gear cover
  • Compact and lightweight at only 10.15 inches in length and 6.2 lbs
  • Download the WR16SA Tool Card


  • 1/2" Square to Hex Adapter (728589)
  • Side Handle Assembly (323774)
  • Extension Bar Assembly (873633)
  • Plastic Case (323777)
Capacity-Ordinary Bolt: M12-M22 (1/2"-7/8")
Capacity-High-Tension Bolt: M12-M16 (1/2"-5/8")
Max Tightening Torque: 270 ft/lbs
Square Drive Dimensions: 1/2"
Switch Type: Rocker
No-Load RPMs: 1,900
Impact Rate (IPM): 2,100
Rated Current (Amps): 4.2
Input Power (Watts): 480
Tool Height: 8.86"
Tool Length: 10.15"
Weight: 6.2 lbs

Warranty Information


Find a Retailer

Related Tools

Related Image

D13VF 1/2" 9-Amp Drill, EVS Reversible

The D13VF 1/2" 0-850 RPM Drill drills into various types of metal, wood, plastic resin, stainless steel and similar materials. This model also tightens and loosens small screws, wood screws, nuts and bolts.

Related Image

CC14SE 14? Portable Cut-Off Machine
The CC14SE 14? Cut-of Machine is equipped with a first class double-insulated aluminum housing that is unique to Hitachi and greatly strengthens the tool. The CC14SE cuts pipes, shaped steel, round bars and various steel materials.

Related Image

G18MR 7" 15-Amp Angle Grinder, AC/DC
The G18MR 7" Angle Grinder is equipped with Hitachi's IDI (Internal Double Insulation) technology that significantly strengthens the body of the tool.  The G18MR deburs diecast products and finishes iron, bronze, aluminum, welds and torch cut surfaces. It can also be used to cut soft steel materials as well as grooving and cutting concrete and other stone materials.

Related Image

CR13V 10 Amp Reciprocating Saw
The CR13V's powerful 10 Amp motor cuts through metal, wood and plastics with ease.

Related Image

WR14DMR 14.4V Cordless Impact Wrench
The WR14DMR 14.4V 1/2" Square Cordless Impact Wrench is used for all fastening purposes. Attachments are available to accomplish drilling and other fastening jobs.