Presidium Gem Tester II Closeouts controlled cuts on ring shanks

controlled cuts on ring shanks without distorting the metal

Simply swap this roll into the upper position of your mill while keeping your flat lower roll in place

approximately 70mm (2¾") diameter

this 150mm all-flat sheet rolling mill is widely regarded as among the finest rolling mills available

618 Airflow Capacity 400 CFM Motor Power 1/2 HP Voltage 120V / 60 Hz Noise Level Under 56 dB Filter Type HICAP Cartridge + Multi-Stage Pre-Filters Inlet Port Diameter 3" (76 mm) Dimensions 17" H × 14" W × 25" D (432 × 356 × 635 mm) Unit Weight 73 lbs Shipping Weight 86 lbs What's Included

Presidium Gem Tester II Closeouts controlled cuts on ring shanksIs it a diamond or moissanite? Ruby or garnet? Sapphire or tanzanite? Emerald or jadeite? The Presidium Gem Tester II (PGT II) provides fast, laboratory proven answers for jewelers and gemologists working with both mounted and loose stones. This professional grade color stone estimator eliminates human error in gem identification by measuring the rate at which different gemstones conduct heat a physical property unique to each stone type. Simply touch