A saw used with one hand.

a versatile tool that can cut rough wood or fine wood or do a corner

Handsaws come in a variety of sizes and types, such as the specialty backsaw, hacksaw, and keyhole saw. But since most cutting is done across the grain of wood, an 8-point crosscut saw (one with 8 teeth per inch) is a good first choice. This saw also will rip -- cut in the direction of the wood grain -- but it won't do it as quickly as a dedicated ripsaw. Home Improvement Encyclopedia

a good thing,but not to shave with