Clevite #MPR1 Plastigage, Red, 0.002 in. - 0.006 in./ 0.051mm - 0.152mm Range, 11 in. Length. MAHLE/Clevite Plastigauge is available in four different sizes to check total vertical oil clearance on connecting rod and main bearings. Each package has a measuring scale printed in inches and millimeters. We also carry the other plastigage sizes at any of our locations.