GRS MicroBlock® One - Mini Setting Ball 68mmEngineered for a perfect balance of stability and maneuverability, the MicroBlock One offers the same trusted work support and maneuverability as the original MicroBlockat a more accessible price. Designed with a self centering jaw system and a low profile design, it is ideal for stone setting, small engravings, and other detailed work under a microscope. The internal rotational brake system allows you to set the rotational resistance anywhere from
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