Wise Buys: Palm Drivers
Bosch PS-20 Pocket Driver
Comparing the Bosch PS-20 to the other compact drivers is like pitting a Porsche against a Yugo: Both perform the same functions, but on completely different levels. The PS-20 differs from the other two drivers because it has two removable 10.8-volt battery packs (so you always have a spare), double the torque, an 11-setting clutch, a quick-connect hex chuck, and a trigger-activated light. It is really just a baby cordless drill/driver. It comes with two hex drive bits (Phillips and flat) and a 30-minute charger.
I tested the tool by drilling with 1/8" and 1/4" twist bits into pine and ash and had no trouble. Next, I used 1/2", 3/4", and 1" spade bits to drill into hard maple. Although the variable-speed 400-rpm motor was slower than my 14.4.-volt drill/driver, it managed nicely. After recharging the battery, I drove 138 2" screws into a 2x4. Next, I used the PS-20 to drive 112 3" screws on a full charge; very impressive for its size.
-- Tested by Bob Hunter, Tools & Techniques Editor
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