IRWIN® Tools has introduced a Folding Utility Knife Series with patented BladeLock Technology. The FK100, FK150 and FK250 knives are designed to prevent blades from accidentally pulling out of the handle during use. The BladeLock Technology also provides the user with the ability to change blades only when the release button is engaged and the blade holder is in the 45˚ open position. Each knife has a liner lock for safe, one-handed operation and a 16˚ cutting angle for comfort and control. The FK100 has a built-in wire stripper, cast finger grooves and trigger-grip handle for comfort; the FK150 is a folding utility knife with built-in blade storage that holds up to two blades for quick blade changes, and also has the features included in the FK100. The FK250 adds an integrated foldout screwdriver for 1″ insert bits, built-in blade storage and an additional insert bit storage compartment. The suggested price for the IRWIN knives with BladeLock Technology ranges from $10.99 to $15.99.