An adjustable reamer spindle is provided to aid a surgeon in controlling an instrument. The reamer spindle is easily disassembled for cleaning. The spindle has a repositionable handle, a locking ring, and an elastic device. The locking ring aids in holding the reamer spindle together. Removal of the locking ring against an elastic bias of a spring unfastens an end of the assembly in order to facilitate disassembly and/or cleaning. Adjustment of the position of the handle about the spindle enables the palm/grip of each hand to be changed in order to provide maximum control in different orientations.