Product review (2 stars): lack of power
Although I have bought Hitachi tools in the past I have never bought their cordless products. I found the balance and compactness of the product impressive.  The power for the product and torque was not. It should have been listed as pounds of torque which I would estimate to be less then 100. This is not enough to drive 3 inch screws.. Even 2 1/2 drywall screws were a problem..The battery does seem to hold a charge extremely well...But time will tell. I  own a Makita 9 volt niCa also for 20 years.. It has twice the power and only 9 volts...the 10.8 li-ion is great for light to medium projects only! It also would be nice if the product description would say that it only takes 1/4 inch shanks and is not adjustable