Lisle 71400 GM Manifold Drill Template

Lisle 71400 Manifold Drill Template GM LSIII Tapered bolts center base plate over bolt holes and slip fit bushing allows you to move from hole to hole without moving base plate. The screw extractor is then used to removed the broken bolt. Includes bushing to drill to tap size when extractor cannot be used. Double sided drill depth gauge to make sure water jacket is not pierced.