Presidium Duo Tester II Diamond & Gemstone Tester polo shirt

Presidium Duo Tester II Diamond & Gemstone Tester polo shirtPresidium Duo Tester II (PDT II) is the only comprehensive tool on the market that combines two proven testing methods for gemstones. PDT II differentiates diamonds from their simulants based on both their thermal conductivity and reflective indexes. Coated gemstones can also be generally tested with the PDT II. The Presidium Duo Tester II comes with a probe pen that has a retractable probe tip, which ensures consistent pressure against the gemstone

No maintenance required

40 and 50gm

- Charging Time: 2-3h

Core Box Bit: R3

9*11 Inch Size: You can freely cut the sheets into different sizes as you need

Color: Yellow + Black + Silver

thus to change the motor speed or light brightness

Whether its gemstone setting

Package weight: 771g / 27

while the octagonal head enhances the comfort

Type: Snap-on Watch Back Case Opener

and more accurate than nitric acid test methods