Snap Off Knife Secure Tools supplies a snap-off knife. It is a type of cutting tool commonly used in various industries and household applications. It features a replaceable blade that can be "snapped off" to reveal a fresh cutting edge when the current edge becomes dull or damaged. The design of a snap-off knife typically consists of a handle and a retractable blade holder. The blade holder securely holds a segmented blade composed of multiple sections. Each section of the blade is thin and sharp.