This drill packs alot of power for only 4.9 amps. The tool is very well balanced and very quiet. I would have given it 5 stars if not for the "unremoveable" chuck. The owners manual does not give any instructions on how to remove nor is there any discernable fiting inside the chuck. All in all a good drill with ample power. Remember Makita makes their own motors.

After breaking the keyless chuck (don't ask). I too was stumped as to how to remove it. I finally decided I had nothing to lose by taking the drill apart. After clamping the broken end of the chuck in a vise, I was able to apply enough force to the gear to unscrew the shaft from the chuck. A new replacement chuck screws back on the same way.
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br /This is a great drill and I'm very pleased with it's performance.

Excellent drill.
br /I bought this to use on an as-needed basis and ended up using it a whole lot.
br /It is really well built and worth the little bit more that you might spend versus a competitor.
br /Just get it... and hang shelves, adjust everything, install an A/C, build something from random Home Depot parts.. whatever. Very handy tool.