3/8'' Drive Slotted sockets size: 10mm, 11mm, 12mm, 14mm; 
1/2" Drive Slotted sockets size: 17mm, 19mm.
For the assembly of top and side wired temperature
sensors, thermo switches and other components
Also suitable for nuts and bolts of bent pipes
The slot width is: 7.4 mm, 8.8 mm, 9.1mm, 10.5 mm, 13.3 mm and 14.4 mm