The Time-Rite unit is the number one choice of aviation mechanics for precisely timing engines. It is assembled by hand and tested to the strictest standards to preserve the original craftsmanship. The unit has specialized arms and calibrated scales to accurately locate Top Dead Center (TDC) and then enables you to set the timing angle with dead-on accuracy.
Kit includes: One 18 mm Time-Rite unit, one 14 mm Cone to adapt for 14mm use, a complete set of scales for 14mm and 18mm engines, a complete set of arms for 14mm and 18mm engines, an instruction manual, and a fitted case.
This is a nice tool but the kit contains no arms for the IO-360(M) Lycoming engine used in Diamond DA40 and my RV8. Also no arms for Continental IO247(B) used in Diamond DA20 aircraft. In fact it is unusable in most newer model aircraft. For $596 I have no aircraft in our fleet that can use this tool because the arms are not available.