This #1 Phillips screwdriver with an ergonomic handle and a heat-treated blade is the right size for removing mortise cylinder cam screws. It also has a magnetized tip and a built-in hex bolster for additional torque when used with a 5/16" wrench. Nickel-plated 4" long blade and 7-3/4" overall length. Meets ANSI/ASME standards for hardness/torque.
