Rated 4.0 out of 5 by 6
Rated 5.0 out of 5.0 by Oday23 Built like a Battleship!
Purchased for drilling into a 1950's brick & concrete porch which was badly "pitted" on it's top. Drilled 24 3/16" holes into the concrete top / sides to take 1/4" Tapcon anchors for the 2x6 sleepers we installed. Other than for changeing out the drill bit frequently so-as-to keep a sharp bit in action, we had no trouble what-so-ever. the HD21-2 drilled into the concrete "like going into butter". Friends & Family laughed at the fact that my wife & I were "still talking to each other" at the end of the project. I figure this hammer drill will last me the rest of my life with no need of replacement.
October 9, 2013
Rated 1.0 out of 5.0 by jgu712 Failed in less than an hour
I purchased this drill based on reviews. With less than 1 hour of use, it appears that the gears stripped. I could hold the chuck with my hand, apply power, and the chuck would not move
April 25, 2015
Rated 5.0 out of 5.0 by RichMinMichigan Excellent Hammer Drill
Bought mine a few months ago and noticed that it must be an updated version because it's 9.2 Amps..............a real little powerhouse! With good quality, sharp bits, it will go into masonry & concrete at a very reasonable rate short of using a rotary hammer drill for more demanding jobs. One reviewer said that his depth gauge wouldn't hold, but if it's put in correctly with the teeth facing the right way in the slot, it works just fine. Great little brute-of-a tool...............as expected from Bosch.
May 18, 2014
Rated 4.0 out of 5.0 by Bathexpert Tool has good weight and torqe unlike some models used
We have used the drill twice now and it seems to be the one we have been looking for. The chuck uses a key so you can lock the drill or hole saw in and have it stay. Our experience with other name brand manufactures drills have been less than desirable.
January 14, 2014
Rated 4.0 out of 5.0 by CustomRemodeler Would have been 5 stars
Read the other positive reviews to see what to like. The depth gauge is the only poor feature... it consistently slipped with just the slightest pressure and was useless.
February 26, 2014
Rated 5.0 out of 5.0 by Dave great product, built to last no plastic here
Good Hammer drill and good straight drill. Service and shipping were very good just as promised
February 11, 2014