Brownells Magna-Tip Screwdriver Bit #440-0 Phillips #0

The Brownells Magna-Tip #440-0 is a replacement screwdriver bit designed for use with the Magna-Tip interchangeable screwdriver system. This Phillips #0 bit features a blade thickness of .142" and is precision-ground to fit firearm screws without slipping or buggering. Ideal for gunsmiths and hobbyists who need a secure, damage-free fit when working on small Phillips-head fasteners commonly found on firearms.