Olfa Heavy-Duty Ratchet-Lock (L-1)

Olfa invented the snap-off utility blade in 1956 — inspired, legend has it, by the way segments of chocolate bars break along scored lines. Seventy years later, the L-1 Heavy-Duty is still the benchmark. The ratchet lock holds the blade rigid at any extension length. The textured rubber grip doesn't slip in dusty or sweaty hands. And Olfa blades are measurably sharper out of the package than any competitor.

The blade geometry matters more than people think. Olfa's blades use a steeper angle on the cutting edge, which means they slice through cardboard, drywall paper, carpet, and plastic sheeting with less force. Less force means more control. More control means cleaner cuts and fewer accidents.

Stanley makes a fine utility knife. Milwaukee's Fastback is clever. But the Olfa L-1 is what you reach for when the cut actually matters.