Aluminium Oxide Polishing Powder Gemological Kits Optional External Bridge for Larger

Optional External Bridge for Larger BarsThe External Bridge attachment (optional) is a game-changer for testing larger metal bars

Scratch Proof : This stone holder will not leave any scarce or scratch on your stone while on display in the holder

Prevent from getting Dirt and scratch

offering a magnification range of 7x-50x with dual-sided zoom controls and a working distance of 110mm

Built with a durable

Aluminium Oxide Polishing Powder Gemological Kits Optional External Bridge for LargerThese are Aluminium Oxide Loose Powders for Lapping and Sharpening of Stones !!! Available in both Bottle and Polybag (Pouch). 1 Bottle Pouch 500 Gram (1 2 KG)