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Rice Lake manufactures cast iron calibration weights in a variety of configurations, including slotted weights, grip handle weights, nesting slab weights and more. Configurations are available in ASTM Class 6 or 7 and OIML Class M1 and M2.

Cast iron calibration weights with a grip handle are available in weight capacities of 10 kg/20 lb and up.

Slotted and hanger cast iron calibration weights are available in ASTM Class 6 and Class 7.

Counterpoise and hanger cast iron calibration weights are available in ASTM Class 6 and 7 and OIML Class M1 and M2.