![Replacement Flex Shaft Motor Inner Shaft for Rotary Polishing Tool Replacement Flex Shaft Motor Inner Shaft for Rotary Polishing Tool](https://cdn11.bigcommerce.com/s-iic0hc/images/stencil/300x300/products/44518/64216/34.315.01__21366.1658864267.jpg?c=2)
![Replacement Flex Shaft Motor Inner Shaft for Rotary Polishing Tool Replacement Flex Shaft Motor Inner Shaft for Rotary Polishing Tool](https://cdn11.bigcommerce.com/s-iic0hc/images/stencil/160w/products/44518/64218/34.315.01photo2__47707.1658864267.jpg?c=2)
This is a replacement set of motor brushes for Jewelers Flex Shaft Machine Rotary Tool Polisher and Drill (item # 34.315). Flexshaft brushes should be replaced when they are worn to about 1/4 of original size, letting the brushes wear down completely can destroy the motor. Each motors requires 2 brushes, these brushes sold in pack of 4.