Presidium PGI Gem Indicator Sanding Bands Disc & Sticks Excellent compound retention for efficient

Excellent compound retention for efficient material removal and finishing

Optional 240 V adapter (TB-164

Glardon-Vallorbe Buff Files bring precision ceramic finishing to the familiar needle file form

controlled cutting action—ideal for knife edges

925 hallmark stamp is designed for use with both the ring stamping machine and jewelry marking pliers

Presidium PGI Gem Indicator Sanding Bands Disc & Sticks Excellent compound retention for efficientThe Presidium Gem Indicator (PGI) is the only handheld tester specifically designed for colored gemstones. Using advanced thermal conductivity technology, it can identify up to 31 different gem types and includes a color input function with 12 common gemstone colors for even greater accuracy. A clear digital LED screen ensures easy to read results, while the patented changeable probe tip delivers reliable, long term performance. The PGI is a