This is an Alisam Engineering reproduction of the South Bend Lathe Co.'s knock out bar / knockout bar. Used for easy removal of collets within the spindle of your  South bend , (or most any), lathe. The knurled handled, 18" steel bar has a SOFT BRASS end, (three sizes of the brass part to choose from), that will not mar or scratch the inside of your lathe's spindle while you coax your stubborn collet out! Please specify what size brass end you would like, 3/4" & 1.0" either in the "notes" or just message me  - (we are OUT OF STOCK of the 1 3/8" brass end). Each is slightly undersize to fit the corresponding spindle ID as was the original. ONLY ONE (1), brass end is included! If you have another lathe with a different spindle diameter the brass ends are available separately in our store. The brass ends are threaded to screw onto the end of the knock out bar so they can be interchanged with the other sizes. A steel eye bolt is on the knurled end of the bar, (SBL used a leather lace), to be able to hang this tool up right next to your lathe within easy reach. See our other reproduction items for your South Bend lathe / Southbend lathe! NOW FREE SHIPPING! USA/DOMESTIC ONLY