Ingersoll Rand W9491-K4E 1-Inch 20V Impact Wrench
The W9491-K4E is a 1-inch-drive cordless impact wrench using a 20V lithium-ion power platform. Its separately stated loosening and tightening figures help buyers compare heavy-duty impacts without treating the highest headline torque as a final fastening setting.
Specifications and included details
- 1-inch drive and 20V lithium-ion power product description.
- Listed torque: 2,600 ft-lb nut-busting and 2,200 ft-lb tightening.
- Brushless motor with IQV MAX Power, MID and Snug control modes.
- Listed IP56 environmental rating; cordless operation avoids a working air-hose connection.
Before ordering
Confirm socket drive, fastener access and battery/charger package contents for the K4E ordering code before ordering. Follow the equipment's final tightening requirements; Snug mode does not establish a universal torque value.
Product questions and answers
Are nut-busting and tightening torque the same figure?
No. The listed figures are 2,600 ft-lb for nut-busting and 2,200 ft-lb for tightening, describing different operating conditions.
Can Snug mode replace a torque wrench?
Do not use Snug as a calibrated final torque setting. Verify fastening torque using the method required by the equipment manufacturer.
Does this tool need a compressor?
The wrench is powered by 20V lithium-ion batteries, so it does not require a compressor connection. Confirm the exact battery and charger inventory for this package.
Browse Power Tools > Impact Wrenches to compare other options.
