It was finally my turn to visit Mark and check out the Golden pile. Here is the first of six that I purchased. It is a Prentiss # 58 with 8-1/2 jaws that needs rescued. The previous owner used this vise without one jaw and it looks like for several years.
I have a project ahead of me in trying my luck at first machining a new channel that matches the moveable jaw. Then I will try my luck on building the 8-1/2 jaws. I built a holder for holding my double angle cutter to machine the serrations for Wilton's 8" jaws, I hope I can squeeze out another 1/2", the holder is weak because of it's length.
Another issue is a crack in it's slide at the end. I've see this issue several times and can only relate it to what we mold makers call a knit line, in plastics when a mold is filled the material is cooling as it is is still filling. When the plastic meets in the tool it creates a knit line that is invisible but there. A weak section is created and under stress the part will crack. Now I do not know how they filled the casting and would stand to be corrected but when I see cracks in the same place over and over again I can only assume this issue. I am going to research the best possible rod type to use and am open to suggestions. My background in welding is Tool Room maintenance, using a TIG welder and welding all sorts of tool steel, aluminum, mold welding and welding alloys like Inconel, Hastoly X etc. I am familiar with the Eutectic rods whether arc or TIG.
I can not wait to start on this project but it will be a winter project since my jaw site is overwhelming me with new jaws you guys keep sending me. I am not complaining and really enjoy making them.
I will post pictures as I get time on my growing collection. OH, Mark gave me a deal at $100.0, I was happy to give it to him.
KMScott said:Still cutting chips on a Saturday night.
Nice MASSIVE vise with 8 1/2 inch jaws !!
Did the weigh the beast before you started chipping off some weight ???
Also, you say you bought 6 from the stockpile in Golden, CO . . . how many complete vises were actually available?? You going to clean-up with spare parts at the end, or buy some more?? How many are left for sale??
I got it about a year ago after looking for three years to find an 8 inch. I think they are harder to find y far than a machinist vise. In Kansas a 6 inch is real common and can be had for under 100 at any sale but bigger than that you better bring some cash
anyone know who this is?

