Qbace Diesel Engine Compression Test Set Glow plug adaptor: 91mm M10*1/ 119mm M10*1/ 135mm M10*1.25/ 118mm M22*1.5/ 113mm M10*1/ 102mm M10*1/ 83mm M10*1/ 64mm M10*1.25/ 47mm M12*1.25 Injector adaptor: 88mm M24*1.5/ 73mm M22*1.5/ 63mm M24*2/ 75mm M20*1.5 Dial gauge: 340mm H fitting Bleed valve