Hilti's SID 4-A22 Cordless Impact Driver is the essential item for Tradesmen who require performance and durability. This tool is the perfect add-on to any 18-Volt or 22-Volt Hilti Lithium-Ion Kit because it has the power to tackle tough applications and it is backed up by an industry leading commercial use tool warranty. This tool body is an excellent way to build out a kit that gives you exactly what you need to be successful on the job.<br><br><b>Features</b><br><br> High-efficiency brushless motor means the tool lasts longer and gets more work done per charge<br> Three gears and electronic speed control for easy switching between different driving speeds<br> Ergonomic grip and trigger for maximum comfort and convenience during long periods of use<br> Robust 1/4" hexagonal click-in chuck<br> Four bright LEDs around the chuck provide direct illumination of the work surface<br><br> Chuck type: 1/4" hexagonal click-in<br> Maximum torque: 531 in-lb (1); 973 in-lb (2); 1717 in-lb (3)<br> No load RPM: gear 1: 1000 rpm; gear 2: 1500 rpm; gear 3: 2700 rpm<br><br> <b>Applications</b><br> Driving self-drilling or self-tapping screws in 12 gauge sheet metal<br> Driving lag bolts up to 1/2" diameter in wood<br> Driving 1/4" diameter Kwik HUS and Kwik HUS-EZ screw anchors in concrete and masonry<br> Tightening and releasing nuts and bolts up to 3/8" in diameter<br> Drilling in wood with WDB-S spade bits<br><br>