Since the beginning of cordless time, manufacturers gradually have been building bigger and more powerful drill/drivers. Early versions of the species boasted 9.6v. Now, some models have evolved into 36v titans. But extra power also means added size and weight, and that can be a disadvantage for furniture makers. A small, lightweight drill/driver is perfect for reaching inside a cabinet to install hardware. It also works fine for general construction at the workbench.

That’s why the new Bosch PS40-2 impact driver caught my eye. It measures just 6-1/2 in. long by 6 in. tall and weighs less than 2-1/4 lb. A 10.8v lithium-ion battery, combined with the impact function, provided plenty of power for furniture- and jig-making. It easily drives long or thick screws and is sensitive enough for smaller ones. A variable-speed motor and a sensitive trigger mean you’re less likely to overdrive screws.

The smallish battery provided plenty of power and held a charge surprisingly well. And the PS40-2 fit comfortably in the pocket of my shop apron. This is a great little tool that could be my primary drill/driver. Its $190 street price includes two batteries and a 30-minute charger. Go to www.boschtools.com; 877-267-2499.

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