Ratchet Service Wrench w/Allen Terminal Adapter for Air Conditioning RefrigerationOOTDTYechs: 4 different sizes of refrigeration service wrench set: 1/4", 3/8", 3/16", 5/16", these sizes are the most commonly used when repairing air conditioning and refrigeration equipment. Allen Tip Adapter: 2 inches long, size: 3/16" & 5/16". Hvac wrench set services are made of high carbon steel, strong, durable and corrosion resistant. The Allen tip is a black heat-treated coating. This a/c service wrench set has a compact size, with clearly marked slots for four nut sizes. Flat non-slip refrigeration wrench, allowing maximum leverage. It is suitable for daily household operation and maintenance. Specification: Material: High Carbon Steel Wrench Length: 132mm/ 5.2 inchBit Adapter Length: 51.5mm/ 2 inchSocket Sizes: 3/16 inch, 5/16 inch, 1/4 inch and 3/8 inchPackage Included: 2x Ratchet Wrench2x Hexagon AdapterNote: Please allow 1-3cm error due to manual measurement. Pls make sure you don't mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.