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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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Found something weird inside my saw
Hi all,
Today I found something weird inside the vice of my power hacksaw. I've noticed a rubber boot inside the vice before, which I thought protected the screw thread from chips. But today a bit of the rubber cracked off, and it didn't look much like rubber. It looked more like that peelable plastic that is used to cover cutting tools, so I became curious and pulled this item out from the vice: http://www.mythic-beasts.com/~cdt22/weird_object.jpg It was resting on top of the vice screw behind the fixed jaw, so it didn't affect the operation of the vice. The question is, what is it? To me it looks like a fluteless thread forming tap, but it's double ended and the threaded sections aren't tapered, so I'm puzzled. It's 5 1/2" long, 1 1/8" diameter at the small end and 1 1/2" diameter at the large end. Both screw threads are right handed and it says "T22 HF" on the large end. Any idea what it is? Chris |
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