Warning, incomplete ball set, please read full details. As a professional mechanic, I ONLY bought this set to remove or tighten loose bolts. This is NOT a full set of BALLS. The smallest 2 sizes come with a standard hex end instead of a ball end. After contacting them about this, they agreed to get me a full set. I have a set (Snap-On, Blue-Point, Vaco, Eklind, and Wiha) of regular T-handle Torx, Sae, and metric screwdrivers, and also need a ballpoint pen as noted for the specific purpose. You CANNOT use a torque ball or they will break. If you buy them and break them, you don't know what you're doing. I bought two Bondhus standard hex keys (sae and metric) as a Christmas present for my boyfriend (also a mechanic), they are great! Not inferior in quality to Snap-On, but at a much fairer price.