Foredom S-93/77 Shaft 39" & Sheath Combo Busch Burs The AVS system automatically starts

The AVS system automatically starts and stops the following Quatro units (requires the separately purchased Quatro AE750 Connector Cable with 9-pin plug):

Busch Burs — the most famous name in jewelers' burs

15 sizes from 0

this permanent magnet ball bearing motor delivers the sustained torque stone setters need to work precisely at low speeds without bogging down under load

Because this chain is pure sterling silver with no plating or surface treatments

Foredom S-93/77 Shaft 39" & Sheath Combo Busch Burs The AVS system automatically startsThe Foredom S 93 77 Shaft & Sheath Combo pairs the S 93 inner shaft (39") with the S 77 outer sheath (36 1 4") in a single, factory pre lubricated assembly ready for immediate installation. Sometimes referred to as a key tip motor shaft and sheath, this is the standard length assembly supplied with many new Foredom systems and is a direct replacement for worn or broken shaft and sheath sets on compatible motors. Features Factory pre lubricated