Fit this Centre Vice to your GEM-FX to turn it into a very capable gift and jewellery engraver, jaw open up to 140mm. Fitted in seconds just clips on and will take all our Jigs and Jig sets (supplied with HD-00100 Standard Aluminum Jig set). This product is only suitable for the GEM-FX, GEM-FX4 & GEM-FX5 engraving machines.