Hello, Guys. Jim, your post jogged my tool inventory memory, and I came up with this forgotten tool. I am not really sure what to call this tool, and could not find any info on it. The blocks are marked 1, 2, and 3 , and each holds a blade to cut a different profile . Looks like Chamfer, V-Groove and Straight. Funny, there is a small piece of pink styrofoam stuck in the V-Groove cutter. The blade packs are marked Christy Trademark Patent Pending. There is a brand name product I worked with years ago called Dryvit. It is basically a stucco finish (latex acrylic mixed with different aggregates) that is troweled over a styrofoam/fiberglass mesh base. There were a lot of specialty tools out there for profiling the foam before applying the aggregate., such as long board rasps, hot knives, I liked the Surform line of tools. Possibly used in that application?? Thanks, Lou
They are used to form ductwork out of aluminum backed fiberglass sheets for hvac systems if memory serves me correctly.
Hello, Bill. Sounds good to me!!! Thanks, Lou
I had a set of duct board tools and got rid of them. 3 in the set. 1 "V" for bends, the other 2 were for lap joints for the seams they were matched. I'm itching just typing about them.
There was a 4th straight thru cutter but a old knife worked better.
Quote from: oldgoaly on September 01, 2019, 12:45:20 PMI'm itching just typing about them.
When I briefly did sheet metal work, we were wrapping the ducts in 1" fiberglass, laid on in a spiral. The best technique involved holding the ducts between your legs as you wrapped the glass on, which meant you soon found yourself straddling a fiberglass-covered duct. The journeyman I was working under recommended taking home a few feet of it and putting it on my side of the bed, to get used to it. Somehow, I suspect he was joshing. :grin:
I stopped when the sun was shining in the window and I could see how much of the fibers were in the air.
I am pretty sure it is a fiberboard beveling set.