µm Milling Chucks by Showa Tool guarantee tolerances as tight as 1µm at the chuck nose and 2µm at 3xD. ERI-America stocks Showa Toolµm Milling andµm Mold chucks in CV40/50, BT40, HSK63A, HSK100A and BIG Plus. ERI America is the exclusive distributor of Showa Tool, including theµm Milling andµm Mold Chucks in North America. The innovative design generates twice the clamping force of hydraulic chucks with extreme rigidity that produces superior surface finishes and dimensional accuracy.µm Milling Chucks are excellent choices for milling, reaming, thread milling and precision drilling.They are available in 0.750", 1.00", 1.250", and 2.00" capacities. Standard and thru-the-flange coolant chucks are available in popular inch and metric sizes.µm Mold Chucks by Showa Tool provide excellent accuracy, 3µm at the chuck nose and 5µm at 3xD. They feature an extended nose design that allows for deep milling and drilling in hard to reach mold and die block cavities. Theµm Mold Chucks provide rigidity and concentricity equal to a shrink-fit toolholder without the cost of induction equipment. Standard and thru-the-flange coolant styles are available in lengths of 150mm and 200mm with inch and metric sizes from 0.125" (3mm) to 0.500" (12mm).