Angle gauge for checking the tightening torque. Almost all connections in the engine must be tightened to a certain torque. In order not to overdo it and break bolts or studs in the cylinder block or head, it is necessary to use special tools for torque control. Angle gauge allows you to turn the joints to a certain degree after using a torque wrench. The scale of the tool is marked up to 360 degrees with intervals of 10 and 30 degrees and a pitch of 2 degrees. Readings are reset for later use by turning the housing. Fits standard heads.