Milwaukee 5380-21 9 Amp Heavy Duty 1/2" Hammer Drill

Milwaukee's 1/2" 9 Amp Heavy Duty Hammer Drill is perfect for any drilling task. Its high-power motor has 2 modes of operation for increased versatility and is capable of drilling into concrete. The 2-speed metal gear box matches speed and torque according to the application, and the integral clutch minimizes torque reactions and helps protect gears.
Plus, the anti-vibration system, soft-grip handle and 2-finger trigger gives users optimal comfort.
WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. Some examples of those chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically-treated lumber. Click Here for more information
This thing is a beast. I haven't used a better drill for electrical rough-ins. We are hard on our equipment, but this Milwaukee and the 7.5 version are keepers, lasting the abuse of rough-in after rough-in for years. Highly recommend it for residential electricians.
After burning up a very nice 18V Milwaukee Cordless drill trying to drill 2" holes in some 2x6's I decided it was time to step up and get a real work horse. This 9A Hammer drill has all the power i need to put a 4" hole saw through anything with power to spare. I've used to to drill holes in a concrete slab, mix concrete and punch holes in wood for plumbing. The gearbox is solid and the hammer feature will shake your house when drilling in slab. The only drawback is that its kinda long and heavy so its awkward to handle...but the raw power is worth the heft.
I've used this only in masonry and concrete, and am very impressed. i burnt up 2 brand x drills in stalling a dewatering system for a friend,lots of holes in block and the perimeter of a sump hole in 4" concrete. I was afraid I would burn up my 18 volt drill, so I got this one. WOW.It chewed thru that stuff like butter, even when the bits got dull it just kept churning.I put in an exhaust vent into a 1930s brick house bath room, and I can tell you were that saying comes from. I had to get 16" bits to get thru the brick over clay tile, on a ladder over my head, it did get a little heavy, but it worked.