An assembly set of seven measuring cones that can be built into one large measuring cone tower. 

A frequently arising problem is the sizing of O-ring inside diameters, when there are only sample o-rings available for identification. It is even harder when the smaple o-ring is deformed or worn. By using this 1032mm high o-ring tower, this task is not a burden anymore.


Place the O-ring on the OR cone, then the stair that fits the O-ring shows its dimension.

Technical features

Sizing range:  5mm – 286mm. 

The cone units are made of durable and precisely machined polyamide. The measuring step-units are by one millmeter at the first 6 cones. Thel last, largest cone has a step unit of two millmeters.

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