The PT-2210-12 / PT-2210-12I Counterbore Cutting Bit is a precision carbide cutter designed specifically for use in Cummins ISX, L10, M11, and C Series engines during upper liner counterbore machining. This bit fits into compatible cutter plates to resurface or correct the counterbore ledge, restoring a true, concentric surface for reliable liner protrusion and sealing.
As a non-warranty wear component, the PT-2210-12 is optimized for sharp cutting, chip evacuation, and extended life under typical counterboring loads. When installed correctly, the bit's traction grooves match up with the cutter plate’s bit adjuster to maintain proper depth and outside diameter adjustments.
Key Features & Benefits
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Compatible with Cummins ISX, L10, M11, and C Series counterbore cutting applications
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Fits with matching cutter plates
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Carbide bit for long wear life and consistently sharp cutting edges
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Designed for precise chip evacuation to reduce binding and tool stress
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Critical for restoring true counterbore surfaces and ensuring uniform liner protrusion
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Classified as a consumable/wear item (not covered under tool warranty)
