I made both with bench drill, and thread tap. Smaller to separate Ford Focus dieselpump belt pulley, bigger for removing Ford 4.6 V8 crankshaft pulley. I made boring template with Invertor 2d print. I splitted the bigger one with angle grinder. Parts I found in metal scrap bin.
Last edited by TexBuxer; Jul 20, 2017 at 07:28 AM.