Includes set of 3 sockets 1/4 3/8/1/2" and socket adapter + 4 pieces 1/4 to 3/8 - 3/8 to 1/4" - 3/8 to 1/2 - 1/2 to 3/8. 4-piece 1/4 - 1/2 inch adapter set (connecting piece) suitable for all kinds of ratchets, ratchets, socket wrenches, torque wrenches, grips, etc. The shoulder built into the hex serves as a pure predetermined breaking point and can withstand a maximum of 20nm, which is more than adequate for a 6 hex, 3 mm with a cone. The surface is immaculately nickel-plated and matt chrome-plated and makes a good impression next to the proxxon sockets. Excellent tool, good for screwdriving, hex adapters make their work and are very sturdy. the ball has a strong contact pressure so that the bits hold well. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.