Arbe PM-350 Variable Speed 1/2HP Polishing Motor 110V Gold & Platinum Stock Wire & Tubing Whether you're setting stones

Whether you're setting stones

single or continuous mode

Use these needles as reference standards when comparing acid reactions on a test stone to determine the karat of an unknown gold item

Two-handed control for truer flats and faster stock removal

Arbe PM-350 Variable Speed 1/2HP Polishing Motor 110V Gold & Platinum Stock Wire & Tubing Whether you're setting stonesThe Arbe PM 350 is an American made variable speed polishing motor built for professional jewelers and metalsmiths in the USA jewelry industry. Delivering smooth, controllable power from a 1 2 HP motor, the PM 350 gives you the flexibility to dial in exactly the right speed for every polishing task from delicate finishing passes to aggressive buffing. The wide speed range of 03600 RPM means you can work confidently across a broad range of materials