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  • End mill questions

    Hey guys! These came with a bunch of end mills off Ebay. Wondering ...the large one, what does this fit in? And the threaded end on the mid size one...what does this thread into? I have a bunch of these and was just going to grind a flat to fit in a Wheldon holder. And finally...the little one, what on earth would this fit? I have several of these and one would work well for milling out the shaft bore in a carb I'm working on. The pilots interchange with the small bolt holding them in but there isn't a lot to hold onto. There is a small hex length to grip with a chuck I guess but I'm sure there has to be a better way.

    Thanks!
    Russ
    I have tools I don't even know I own...

  • #2
    No idea about the top and bottom ones.

    The Clarkson (I think that's right) company of England made, and maybe still does, a milling machine end mill holder that accepts threaded-shank end mills, which may be what #2 is about.
    ----------
    Try to make a living, not a killing. -- Utah Phillips
    Don't believe everything you know. -- Bumper sticker
    Everybody is ignorant, only on different subjects. -- Will Rogers
    There are lots of people who mistake their imagination for their memory. - Josh Billings
    Law of Logical Argument - Anything is possible if you don't know what you are talking about.
    Don't own anything you have to feed or paint. - Hood River Blackie

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    • #3
      The top and bottom ones look like "porting tools" the top one being hand turned with a tap wrench and the bottom one for a speciality machine designed for porting. YMMV

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      • #4
        Top one looks like it could be used to cut valve seats .
        here are two more
        I got 25 of these off ebay for آ£5
        btw most have "James Webb and Sons" written on them.
        anyone know what they are :-



        all the best.mark

        [This message has been edited by aboard_epsilon (edited 01-09-2005).]

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        • #5
          Note...for size comparison...the middle one is a 3/8" X 2"L
          I have tools I don't even know I own...

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          • #6
            TORKER
            The middle one is like every end mill i own .
            the thread is for when you use them in collet chucks ...
            Thread can be ignored when used in r8 collets.
            all the best..mark

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            • #7
              Question...Why do you need threads to use them in a collet chuck? Just wondering because I bought about 30 end mills and most of them are threaded. Thanks!
              Russ
              I have tools I don't even know I own...

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              • #8
                torker
                the bottom one looks very much like a counterbore for an M size hexagon head,very handy to sink the bolt into the job, the middle one quite rightly is of the 4 flute coventry make .

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                • #9
                  I agree...it is a counter bore of somekind. I'm just wondering how you are supposed to grab it. The hex length is only 1/4" long. these came from an old machine shop in Quebec that went out of business. I'd bet there was lots of old English built equipment in the shop. A lot of stuff I've been buying from back east is old English manufacture. I was suprised to recieve a couple of old (really nice) Starrett mics that where made in England. I'm since told that Starrett had a factory there for some time.
                  Russ
                  I have tools I don't even know I own...

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                  • #10
                    Question...Why do you need threads to use them in a collet chuck? Just wondering because I bought about 30 end mills and most of them are threaded. Thanks!
                    Russ


                    because its belts and braces approach .....some people will not use anything but a collet chuck...they belive the r8 system is flawed because the mills can push up or even come down.
                    they are screwed into the back of the collet chuck into a loose fixture then the collet is tightend also.
                    all the best..mark


                    [This message has been edited by aboard_epsilon (edited 01-09-2005).]

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                    • #11
                      The top one looks a lot like a tube mill for radiusing the id end of a tube.Dosn't say Everet does it?
                      I just need one more tool,just one!

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                      • #12
                        Mark, your's look like reamer's designed for thin material such as sheet metal.

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                        • #13
                          The top and bottom cutters are piloted cutters, perhaps for valve seats. The square drive suggests using a socket extension.

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                          • #14
                            Does the top end mill in picture one have a radius in the corners before the pilot? May be a corner radiusing cutter. I had a few strange radiusing cutters from the old J&L and Joy plants hanging about here a bit.
                            CCBW, MAH

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                            • #15
                              Here's perhaps a better pic of the bigger cutter.

                              I think it IS to be used with a tap handle...unless you know of a chuck or whatever that holds these????
                              Weird...you may be close...maybe for cutting a chamfer on the inside? No it doesn't say Everet. I assume this is another Butterfield cutter. It has the same hand engraving on it that all the other Butterfield stuff has. Couple of pretty strange cutters anyway!
                              Russ
                              I have tools I don't even know I own...

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