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The Jura Tools Basic Quick Change Set was designed by a renowned diamond setter for securely holding rings and practice plates for stone setting and engraving. Includes the GRS MicroBlock XL with Jura Master Jaws, Jura Horizontal Inside Ring Clamp, Vertical Inside Ring Clamp, set of 10 Ring Collets, Flat Clamp, Block Base, and 5 mm Hex Wrench. The Jura Master Jaws (supplied into place of the standard MicroBlock jaws) allow for fast and easy swapping of the fixtures included in this kit along with a variety of other QC (Quick Change) workholding fixtures in the Jura product line (see related products below).
To secure a ring, install one of the expanding plastic collets (13-22 mm dia.) in one of the Ring Clamps, slide the ring onto the collet and tighten the clamp using the included Hex Wrench. With the ring held firmly from the inside, the entire outside surface is accessible for engraving and stone setting. Tension can also be adjusted to allow easy rotation of the ring. The Flat Clamp can hold square or round practice plates horizontally as well as beading tools and other round shank tools vertically, using the integrated grooves on the inside of the clamp.
Also available without the GRS MicroBlock XL (see related products below).