The BBK ATQS41 is a metric R410A torque wrench set containtaing indiviual spanners- 1/4", 3/8", 1/2" & 5/8".
These are supplied in a robust carry case for protection and ease of storage.
A quality torque wrench is a must for any refrigeration mechanic, and ensures both the correct tension of flare nuts against leaks, as well as preventing overtightening causing damage to nuts and pipework.