15mm ID Cylindrical Hardened Steel Dry Pressing Die Set Maximum Pressure: 20 tons Rockwell Hardness: Rc 62 Height: 90 mm (assembled without sample) Tolerance: 0.01-0.02 mm (10-20 micron) Diameter (ID): 15 mm, Sleeve Height: 40 mm, Sleeve Diameter (OD): 39 mm