SIZE 1 Phillips Bit: PH2 (#2) Phillips screwdriver with 4.5 inch (110mm) mini ratchet screwdriver. COMPACT PORTABLE: With compact length of 4 inches and 1 inch depth, this set can be used in even the tightest spaces. DELICATE MECHANISM: This right angle combination screwdriver set features a reversible ratchet system with 36 chrome vanadium steel teeth to ensure smooth ratcheting in both directions and allow for precision adjustment. The rotation direction can be changed easily using the dial button. The compact design includes a magnetic clip inside the hex bit holder to securely hold bits in place. MAGNETIC BIT ADAPTER: The magnetic bit adapter securely holds any 1/4 inch hex bit, providing higher torque and improved efficiency. WIDE RANGE OF APPLICATIONS: This mini ratchet screwdriver includes a PH2 bit, one of the most commonly used sizes, suitable for a wide range of applications including appliances, automobiles, household repairs, machinery, and other equipment. Always wear protective eyewear when using tools to reduce the risk of injury. Keep out of reach of children.