This handles came equipped in many monarch lathe model, like ck12, and many more ww2 era machines

The bore that attaches to the machine is 5/8 holes with a #5 taper pin,

Is made of 6061 aluminum handle to keep the cost down but yet still strong and ss steel on the pin and knurled thumb handle for corrosion resistance,

Please note:

includes assemble handle with taper pin

You will need to ream the hole on the handle to be able to install the taper pin