Innovative, variably extendable stabilizing rail: Versatile use, faster work, precise cutting, apply targeted pressure to the back of the blade without risk of injury, no unintentional bending or breaking of the blade, robust, durable magnesium housing: light as plastic, strong as die-cast aluminum, fixed blade thanks to high quality Blade lock: secure fit when cutting, pushing and scraping, handy: 165 mm long, approx. 111 g light, original equipment with high-quality snap-off blades, two spare blades in the handle drawer, can be changed without tools, suitable for commercially available 18 mm high blade shapes: smooth, wavy, with hook , fits comfortably in the hand thanks to its slim shape and many grip zones: firm and non-slip gripping, comfortable holding, flat, ergonomic slides separately for the blade and stabilizing rail, no accidental actuation of the slides, reliable blade holder: the blade is held securely by the hardened steel pin ft, rear end of handle closed: Blade slide and blade cannot slip out, fastening eyelet for securing tools with KNIPEX Tethered Tools* System