Diesel Injector Sleeve Tooling, Drill size (inches): 51/64 and 1-1/4

G-Oversize HSS Tapered Tap. High-speed steel tap for installing “GO” series ductile iron plugs in GM/Detroit Diesel 71 & 92 engines and other casting repair applications.

Enlarging Counter Bore Cutter (1-¼” Diameter) for Cummins ISX15/QSX15 DOHC & SOHC Engines. Used to prepare the injector hole for repair.