1. Compatible for Various Uses: The lightweight magnetic bit adaptor with higher levels of torque accepts any 1/4 inch hex bits of all styles. This whole set performs well in confined locations on machines, cars, boats, plane, RV, etc., or for household or work with 'tight fit' repairs, installations or renovations 2. Compact and Portable: 4.5 inches (110mm) mini ratchet screwdriver, small in size and light in weight, for operating in tight places. 3. Quality Material: The magnetic rightangle screwdriver is made of quality steel, which is durable, rustproof and has a long service life; the drive wrench adopts ergonomic nonslip design, and the PVC plastic handle is comfortable to hold. 4. How it works: This multi tip right angled combination screwdriver set is powered with a 36teeth reversible ratchet system to ensure smooth ratcheting in both directions and enable precision adjustment; and the miniature pocket size closequarters bit driver has magnetic like clip inside the hex bit holder help keep the inserted bit tight in position