48-inch Professional-Grade Magnetic Aluminum I-Beam Level (5100-0048M) Adjustable The heavy duty return spring

The heavy duty return spring reduces hand fatigue and provides increased accuracy when applying or removing snap rings

As big as the job you need

considerably less force is required to cut than other high-leverage designs

Nickel chrome finish for exceptional corrosion resistance

QUICK CONVERSION by a simple switch of the tab

48-inch Professional-Grade Magnetic Aluminum I-Beam Level (5100-0048M) Adjustable The heavy duty return springSet your work straight with the CHANNELLOCK 4 Foot I Beam Magnetic Level. Inspired by America's hardworking tradesmen and women, this spirit level features three high contrast vial surrounds for level, plumb and 45 vials, an easy to read top view window, and a built in magnetic strip that offers a strong hold on metal surfaces. Its durable aluminum frame and rugged shock absorbing end caps are built for years of hard work. Plus, its ergonomic hand