Rotary Sheeter Cutoff Knives (20.5 Wide). Full set of used cutoff knives for a Custom-Bilt Rotary Sheeter (plus one extra cylinder blade). A set consists of 1 stationary knife (#141338) and 2 cylinder knives (#141357). You will also get an extra cylinder knife (#141357). All blades are High Speed Steel, sharp and ready to install. Check your Service Manual for compatibility. 375″ Thick x 1.675″ Height x 20.5 Wide. 1 – Bed Knife #141338. 3 – Cutoff Knife #141357.