Upper Deck Counterbore Shim Cutter for CAT 3306, 3406, & 3176. Hand operated shim cutter. Can also cut the CAT 3408/3412 with #50139 Adapter Kit.ALL CUTTER BITS ARE NON WARRANTY ITEMS
This tool will cut different engines, see Monaco Tool Cutter Plates:
Order Monaco Tool #50139 Adapter Kit for use with Cat 3408 or 3412 engines.
Here is a video of the preparation of your block and operation of our Monaco Tool #50139 Counterbore Tool.