Angle degree torque gauge tool for 1/2 inch spanner extension (to tighten cylinder head stretching bolts)

Angle degree torque gauge for 1/2 inch spanner extension usually used to tighten cylinder head stretching bolts. It's a snug fit onto the ½ extension and the dial is sandwiched between the bottom ring pressed onto the upper hand piece. To keep the dial in the position, I used 8mm smooth rod, but you can fit whatever you like - threaded rods, stiffer wires, pieces of wood etc. I have added a .step file to make adjustments according to your needs.