YOU WILL NEED TO PURCHASE THE CUTTER PLATE!! THIS TOOL ALONE, DOES NOT INCLUDE THE PLATE: SEE YOUR OPTIONS BELOW FOR DIFFERENT ENGINES.
Upper Deck Counterbore Shim Cutter for CAT 3306, 3406. Hand operated shim cutter.
To cut the CAT 3408 & 3412, you will need the 50139 Adapter kit.
ALL CUTTER BITS ARE NON WARRANTY ITEMS
This tool, with the optional cutter plates, can cut different engines, see Monaco Tool Cutter Plates:
- 10225 – Cutter Plate for CAT 3400 & C15
- 10228 – Cutter Plate for CAT 3306
- 50150 – Paccar MX 13
Be Proud to own American Made Tools.
Here is a video of the preparation of your block and operation of our Monaco Tool 50139 Counterbore Tool.








