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Thread: Need a machinist to drill and tap a redding T-7 toolhead from 7/8-14 to 1-1/4-12

  1. #1
    Boolit Master
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    Need a machinist to drill and tap a redding T-7 toolhead from 7/8-14 to 1-1/4-12

    Yup, the title says it all. I need a machinist to drill and tap a redding T-7 toolhead from 7/8-14 to 1-1/4-12.

    I saw one done some years ago and there was sufficient meat to handle it. I have several uses for this but have no equipment nor talent to accomplish it.

    I'm pretty sure this is where the machinists of the gun folk hang out...There is one brand new tool head, perfectly flat on the bottom, with 7 holes. It appears to be iron or steel. It certainly isn't aluminum.
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  2. #2
    Boolit Master BlackoutBuilder's Avatar
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    Would be nice if a machinist started up a vendor thread.
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  3. #3
    Boolit Master
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    Quote Originally Posted by AbitNutz View Post
    Yup, the title says it all. I need a machinist to drill and tap a redding T-7 toolhead from 7/8-14 to 1-1/4-12.

    I saw one done some years ago and there was sufficient meat to handle it. I have several uses for this but have no equipment nor talent to accomplish it.

    I'm pretty sure this is where the machinists of the gun folk hang out...There is one brand new tool head, perfectly flat on the bottom, with 7 holes. It appears to be iron or steel. It certainly isn't aluminum.
    The problem is going to be that the toolhead is more than likely hardened requiring the use of carbide tooling, which is simple enough for the boring part but carbide taps are expensive and easy to break or necessitating the use of a faceplate and 7 setups to complete. A quick test with a file will tell you how hard.
    I think your best bet would be to find a small cnc shop with thread milling capability that can do this job on a vmc.
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  4. #4
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    Quote Originally Posted by akajun View Post
    The problem is going to be that the toolhead is more than likely hardened requiring the use of carbide tooling, which is simple enough for the boring part but carbide taps are expensive and easy to break or necessitating the use of a faceplate and 7 setups to complete. A quick test with a file will tell you how hard.
    I think your best bet would be to find a small cnc shop with thread milling capability that can do this job on a vmc.
    But yet it's not. Just simple cast iron, very easy to machine, in fact the carbon in the cast iron acts as a lubricant as anyone who has ever drilled cast iron will tell you.
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  5. #5
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    If it's cast it's an easy job, just find someone who can set it up to drill on center of the existing holes. With the right guidance an apprentice could do it.
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