Power wrench tools come in various models today and they are designed for specific personal and industrial use.
Impact wrench tools are available in various sizes from ½ inch to 1 inch. The newer models are far lighter than their elder cousins, mostly because the all metal bodies have given way for lighter molded PVC bodies that look better and take in a lot a scratch and seat in their stride. It’s now more on power and less on weight. A 400 ft. / lbs capacity power impact wrench tool weighs just about 10 pounds these days. Most tools come with dual power options with a rocker AC/ DC switch. The motors range from 2 amp to 10 amp and deliver RPMs from 750 to 1600, with up to 2000 bpm. Look for strong and symmetrical detent pins to avoid damage to your equipment and loss of power. Most models have between 10-15 foot power chords and a 360° side handle for maximum flexibility.
Your power impact wrench tool should have a quick-change retention system for quick removal and insertion of auger bits and socket adaptors. An all-metal front housing tool accounts for a longer life of your tool. Other options include friction rings and hand gloves. Look for models that give you a better grip, something that gets surprisingly important while loosening rusted fittings. The pricier models have better torque adaptability. The technician should be experienced to handle precision tools.
Milwaukee, Makita, DeWalt and Craftsman are the major manufacturers of power impact wrench tools, as you can see from this Craftsman impact socket set review, and cost between $100 and $700, depending on capacity. Look for models with variable speed and forward/ reverse options. A power impact wrench tool is one of the bare essentials that you need to have even at your home to fix up your car and your lawnmower alike.