Ferree's Key Fitting Tool Handles

These are designed to be used with the Ferree's solid hinge tube reamers, (D20/D21) and with the pivot screw key reamers (E47). I found the best way to install the tools into the handles was by chucking up the tool in the bench motor, and running it very slowly as I gently pushed the handle onto the tool. There is no tolerance to install it by hand unless you sand down the tools.