Additional Details ------------------------------ Product description: Our "counterweight-ready" upper shaft for the Minelab Equinox includes 4 cuff-adjustment holes, and one hole for the control-box handle (in the same positions as the stock Minelab shaft). The shaft also includes a heavy duty, adjustable, removable clamping cam lock. Finally, this shaft includes a threaded insert in the butt-end of the shaft (to permit attachment of the counterweight), and a matching-threaded end cap (to cap the shaft when the counterweight is not being used).