GRS 003-773 MicroBlock XL without Attachment Set BenchMates & Accessories rub a known gold testing

rub a known gold testing needle or verified gold sample alongside the test item's rubbing

making them ideal for creating necklaces

engineered to eliminate chromatic aberration and color fringing for distortion-free

portable work center designed for forming

Includes owner's manual — unique among 10X triplets in this catalog

GRS 003-773 MicroBlock XL without Attachment Set BenchMates & Accessories rub a known gold testingThe GRS MicroBlock XL is an expanded, heavier version of the original MicroBlock vise, designed to fill the gap between the GRS MicroBlock and the GRS Standard Block. Weighing 7 lb (3. 18 kg) with a 100 mm ball diameter roughly the size of a softball it delivers the mass needed for hard hitting engraving work while remaining compact and maneuverable enough for precise, delicate control. Its low profile makes it well suited for use under a microscope,