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Rifles, Reloading, Optics, Equipment
Gunsmithing
How do you hold the chamber reamer?
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<blockquote data-quote="shortgrass" data-source="post: 819639" data-attributes="member: 24284"><p>There seems to be a lot of confusion concerning "floating" holders. True floating holders are those made by Parlec, Glenco, & Kennametal/Ericson. They were used primarily on screw machines and turrent lathes and truely did 'float' , but held the tool securely, for hole alimement (it's nearly impossible to ream a straight hole to size or tap a hole within tolerance on those old production machines without "floating" holders). The modern rendition that many gunsmiths use is made by JGS, Manson, and others. They allow for alinement, but must be guided until the pilot is in the bore. Many call a "pusher", like the Bald Eagle, a floating holder. It truely does 'float' because the tool is unsupported by any machine attachment (tool holder). I tried a Bald Eagle , then sold it . Took too long to cut a chamber and I felt like my hands were too close . The third option is to build your own. That's what I did as I had worked with Ericsons' and Glencos' in the past. Holes the reamer securely, is held in the tail stock, allows for alinement in all directions and allows for safety. It'd work on a turrent lathe or screw machine without problems, but I sized it for my 13 x 40 lathe and the 7/16" shank of a chambering reamer. 39 years of working with machine tools says don't put yourself in a spot where you might spill blood. Use what is comfortable for you and gives you the desired results.</p></blockquote><p></p>
[QUOTE="shortgrass, post: 819639, member: 24284"] There seems to be a lot of confusion concerning "floating" holders. True floating holders are those made by Parlec, Glenco, & Kennametal/Ericson. They were used primarily on screw machines and turrent lathes and truely did 'float' , but held the tool securely, for hole alimement (it's nearly impossible to ream a straight hole to size or tap a hole within tolerance on those old production machines without "floating" holders). The modern rendition that many gunsmiths use is made by JGS, Manson, and others. They allow for alinement, but must be guided until the pilot is in the bore. Many call a "pusher", like the Bald Eagle, a floating holder. It truely does 'float' because the tool is unsupported by any machine attachment (tool holder). I tried a Bald Eagle , then sold it . Took too long to cut a chamber and I felt like my hands were too close . The third option is to build your own. That's what I did as I had worked with Ericsons' and Glencos' in the past. Holes the reamer securely, is held in the tail stock, allows for alinement in all directions and allows for safety. It'd work on a turrent lathe or screw machine without problems, but I sized it for my 13 x 40 lathe and the 7/16" shank of a chambering reamer. 39 years of working with machine tools says don't put yourself in a spot where you might spill blood. Use what is comfortable for you and gives you the desired results. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Gunsmithing
How do you hold the chamber reamer?
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