Check the listing for details. Bunn 16" twine arm - obsolete / used. Condition: Used. Listed at 119.95 USD. You are viewing a twine arm for a Bunn 16" tying machine. The factory considers these obsolete but we have tons of them. Most of them have been repaired at some point in their lives but all came off of working machines and in many cases, the repair is undetectable and is very durable. We used to take the hub and send it to Chicago and they would remove the broken arm portion and braze in a new outer arm portion. This used to cost more than what I am asking for this unit.The dimensions are as follows;A) from the outside of the curve to the end of the tip = 9.5"B) from the outside of the curve to the first portion of the sprocket off of the shaft = 11", 11-3/8" to the shaftC) along the shaft to the spot where the swing table inserts = 7.5"D) the diameter of the shaft = 3/4"The diameter of the sprocket is 2" from the inside of the teeth (down in the valleys) and 2-5/8" from the tip of the teeth to the other tip (outer diameter). There are 15 teeth on the sprocket. We feature a complete selection of obsolete Bunn parts so if you don't see what you need, message me and we will put up a listing on Ebay for whatever it is you may need.