01-23-04
Panasonic Impact Driver
The newest of the Panasonic cordless drill drivers is a transcendent tool. It has an interchangeable head that makes it into an impact driver. At first I thought this was a silly add on, but quickly realized that impact drivers are amazing. They allow you to drive 6-inch lag bolts with one hand, and remove seized nuts easily. However with the non-impact head you canbe gentle with small wood finishing screws, orgently tightening nuts. We have both kinds of drivers in our shop but when they cost $300 each its nice for most people to get both types in one tool - this one.
--Alexander Rose
Panasonic EY6431NQKW 15.6- Volt 1/2-inch Cordless Hyperformance Drill Kit
$290
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Jim Balderston
Having used impact drivers for a variety of projects, including putting a metal roof on a large shop building, I can recommend them as a far superior option to regular power drills for driving screws. I have not used this model, only Mikitas and Ryobis (recommend the former, not the latter).
Impact drivers allow you to drive longer screws through harder materials without blowing out the screwhead with the bit. They also allow you to sink a screw fully without spinning it in the material, which can weaken the anchoring capacity of the screw. Impact drivers tend to be smaller, lighter and easier to use over the course of a long day of driving screws (on a deck or roof project, for example).
Again, this is a generic recommendation for the type of driver this professes to be.