Summary: I have owned this product as part of a set of Hitachi 18v LI-ION tools for 3 years now. This little beast never fails to get the job done. Screws drive extremely fast, and without stripping. Much, MUCH better than with a drill. The battery holds it's charge for a very long time. I recently used it for some fence repairs and drove over 100 galvanized screws with no degradation in power at all. I love the Hitachi products for their durability and quality.
Summary: Hitachi makes incredible drill drivers and impact drivers. This is my third Hitachi driver product and I love it. My two other 18v drills have worked flawlessly for more than 3 years and the only reason I bought a second one was because the life of the batteries of the first drill had worn down to nothing. This is normal and totally expected since I use my cordless drills nearly every day as a professional contractor.
Dated Design - Reasonable Performance - two step power
ZenReader "ZenReader", amazon.com
25 October 2010
Summary: The nice thing about this model Hitachi is that it has a two position speed switch. The regular full power mode cranks out 1,300lbs. It also will drain the battery quicker. The S mode is slightly less power but will substantially lengthen the life of the battery. The S mode is powerful enough to drive 3" screws in pressure treated wood. You can do 99.9 of your work in Saver mode and it does make your battery last twice as long.
Summary: I originally bought this product to take something off, rather than put something on. Being older, having some physical weakness and having no help made me uneasy thinking of using a pipe as a breaker bar (on a wrench) to remove a connection from my water heater. The WH18DL made the job effortless. It is lighter than a 9 volt NiCad Dewalt drill and POWERFUL. Since that project, I bought torque sticks to use with the WH18DL for tightening lug nuts and mower blade bolts.
Summary: Hitachi WH18DL 18-volt Lithium-Ion Cordless Impact Driver Just finished screwing a wooden storage shed together using the Hitachi WH18DL Impact Driver. What a great tool! It drove lag bolts and all different length deck screws with no loss of power. My son and I agree that it was actually easier to screw the shed together than nail it. Right off the bat, I had to screw the 2x6 floor joists to the side 2x6 using 5/16" x 4" lag bolts.