The AM5 Lapping Tool has been designed for grinding the heat spreaders of AMD's AM5 processor series. The tolerances of the AM5 Lapping Tool allow for a stepwise grinding of the heat spreader by 0.4 mm, up to a total height of 1.6 mm. When using the standard AMD mounting frame (SAM), a maximum grinding of 1.0 mm is intended until the intermediate steps are reached. An additional 0.6 mm is only possible if the CPU is mounted with a compatible AM5 Contact Frame, for example. The steps of the AM5 Lapping Tool are diamond-milled to achieve high transparency. This allows users to see which steps have already been reached and which have not during the grinding process.

Lower temperatures thanks to grinding the heat spreader: The American content creator and tech YouTuber JayzTwoCents was able to achieve temperatures up to 5 degrees Celsius lower with minimal higher boost clocks across all cores using a Ryzen 9 7950X and a 360 mm AIO. In combination with Kryonaut Extreme thermal paste, even 10 degrees Celsius lower temperatures were achieved. Even with a moderate overclocking of all cores of the Ryzen 9 7950X to 5.4 GHz, the test system remained 4 degrees Celsius below the temperature limit of 95 °C.

These temperature improvements from grinding the heat spreader are partly due to the heat spreaders of the AM5 platform. The heat spreaders introduced with Ryzen 7000 are thicker than the AM4 heat spreaders to ensure that AM4-compatible CPU coolers remain compatible with the AM5 platform. Additionally, the surface area of the Ryzen 7000 heat spreaders is significantly smaller at approximately 910 mm² compared to AM4's 1,300 mm².

Note on compatibility with AM5 motherboards: It should be noted that grinding the CPU will void the warranty.