Most blocks are built from three bonded parts. This one is milled from a single copper billet, so the heat path from the die to the coolant never crosses a solder layer. The 42 fins are cut into the same piece — 0.3 mm each, held to ±0.02 mm — because a fin field that stays true under pressure moves heat faster than one that bows. Flat, straight, repeatable.Coverage is where a block is judged next: the 62 x 62 mm plate spreads contact pressure across the full IHS on LGA 1700, LGA 1851 and AM5 alike, and the nickel-plated brass ports hold their torque after repeated fitting changes. Every unit finishes on the bench — 1.5 bar for 30 minutes, then a visual pass under light. If the gauge moves, the block never ships.