The SP-1 bar is our standard production bar. Trying to lay out a splicer or doubler? Then here is the bar for you. One end holds a 1/2" O.D. X 1/2" long bushing , while the other will take a 3/4" X 3/4". It also comes with three slots to increase clamping positioning, and may also be clamped down with c-clamps.
What a GREAT addition to any tool box.