Gem Setting Gauge Bergeon 7745 Bracelet Adjusting Tool Digital LCD display with backlight

Digital LCD display with backlight for easy reading

Chrome handle with knurled grip

Modified to open case backs of larger watches

Output: Relay 10A One Load

Gem Setting Gauge Bergeon 7745 Bracelet Adjusting Tool Digital LCD display with backlightComprising of 18 conical gem guages; Each hardened steel with blue plastic handles; Marked in mm 1 to 5; Carat points 1 2 to 50 for checking the size of the stone seat;(Carat point) sizes include: 1. 00mm (1 2); 1. 38mm (1); 1. 63mm (2); 2. 00mm(3); 2. 13mm (4); 2. 25mm;(5); 2. 38mm (6); 2. 50mm (7); 2. 63mm(8); 2. 75mm(9); 2. 88mm (10); 3. 00mm;(11); 3. 13mm (12); 3. 38mm (15); 3. 50mm (17); 3. 88mm(20); 4. 00mm(25); 5. 00mm(50); Stone gauge with 18