package included: 10pcs 50mm ph2 screwdriver bit specifications: material: s2 shank type: hex shank shank diameter: 1/4"(6.35mm) length :50mm sharpness:ph2 reduces slip and cam out magnetic tip on all bits ph2 bits 1/4" hex quick release shank for easy changes 50mm long ph2 phillips bits used on the most common screw types features: 100% and high quality. screwdriver bits 50mm phillips hex insert driver ph2. phillips 50mm screwdriver driver bit ph2. anti slip hex shank electric screwdriver bit. can be used for 1/4 electric, hand screwdriver, drill screwdriver and other tools. anti slip, high snap and high hardness, durable, magnetic.