The key to these tools is an anvil-and-ram system that hammers the bit in the direction it's rotating. The number of times it's hammered is measured in impacts per minute (ipm). Milwaukee 2650-22Price:
About $240; milwaukeetool.comOur two cents:
"This was our favorite tool in part because it drove SDS screws faster than some of our corded impact drivers."Highlights:
One of the most comfortable grips, a good belt hook, and great battery life.Test results:
Drove eighty-five 4 ½
-inch SDS screws on one charge. Drove a 6-inch SDS screw in 15 seconds. Drove a 2 ½
-inch deck screw in 16 seconds. Drilled a ¾
-inch hole in 4 ½
seconds. Average recharge time: 65 minutes.Tool stats:
3.5 pounds; maximum ipm: 3,200; maximum rpm: 2,200; maximum torque: 1,400 in.-lbs. Includes built-in LED, five-year tool warranty; kit includes two 3.0Ah lithium-ion batteries.
* Please note this tool is also available with Milwaukee's new RedLithium battery.