For those who demand top-of-the-line tools, the Makita PH3 Impact Black Screwdriver Insert Bits are a must-have accessory. These screwdriver bits are designed with a 50mm length, 1/4" Hex shank type, and magnetic features. These screwdriver bits are compatible with various drill types, including impact cordless drills. Measuring at 2 inches in overall length, these screwdriver bits are crafted from high-quality metal that offers superior performance, making them highly effective for screwdriver and PH screw applications. These screwdriver bits are manufactured in China and are available in a pack of two pieces.