At the Detroit Auto Show today, GM will take the wraps off of its 2016 Chevy Volt. The headline numbers reveal a 50-mile EV range, 41 mpg and seating for five. Well, four-and-a-half. Let's start ...

Visually inspect the hydraulic breaker for loose or broken bolts and worn out bushings. Keep an eye on tool and bushing wear. If the tool appears loose in the bushings, the play should be measured ...