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Who's used an annular cutter on their mill?

Discussion in 'TOOL JUNKIES - TOOLS & TOOLING (Love Tools? This Is Your Forum)' started by sanddan, Mar 7, 2017.

  1. EmilioG

    EmilioG United States Active User H-M Supporter-Premium

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    A DIY arbor would be great in O1 tool steel so it can be heat treated. O1 is very expensive when you start getting into 1" diameter and up.
    An R8 is a lot of work to turn and takes a lot of skill. Maybe down the line, I may revisit annular cutters again, but for now, I don't really have a need.
     
  2. scwhite

    scwhite United States Active Member Active Member

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    Oh I thought it was a mill cutter .
    Guess I don't know what it is .
    I need to go back and look at these closer .
    Thanks for letting me know
     
  3. scwhite

    scwhite United States Active Member Active Member

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    I will have go back and look at those
    I don't guess I even know what these are ?????
     
  4. EmilioG

    EmilioG United States Active User H-M Supporter-Premium

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  5. scwhite

    scwhite United States Active Member Active Member

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  6. xman_charl

    xman_charl Active User Active Member

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    use these on mill and lathe

    mt3 with R8 adapter for mill ....tailstock lathe is mt3

    P1010797.JPG






    Charl
     
  7. EmilioG

    EmilioG United States Active User H-M Supporter-Premium

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    Could I use an old R8 JT arbor and turn it into an arbor for smaller annular cutters? 3/4" shank cutters?
     
  8. Alan H

    Alan H United States H-M Supporter - Premium Content H-M Supporter-Premium

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    Here's a MT3 Weldon shank for the lathe (also for a drill press). It is available at a more attractive price through Amazon than via ebay..
    MT3 Weldon Shank for Annular Cutters.jpg
     
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  9. EmilioG

    EmilioG United States Active User H-M Supporter-Premium

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    If they made an arbor for annular cutters in straight shank or R8, that is reasonably priced, that would be great.
    Making one from O1 tool steel then heat treating is a fairly expensive and time consuming proposition.
     
  10. EmilioG

    EmilioG United States Active User H-M Supporter-Premium

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    Hougen does make a USA quality made arbor for $67.00, coolant collar optional. These arbors are used with 12,000 series/1" DOC tools. 3/4" , but this one is NOT for machine tools. The correct arbor for machines costs around $185.00 for R8 or SS. The one pictured is for stationary tools and drill chucks. Maybe I'll find a good one on Ebay for less.
    Hougen.jpg
     
    Last edited: Apr 29, 2017
  11. Flying A

    Flying A United States Swarf Registered Member

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    Yes it will work! I used one where I cut the tapered face off till the cutter lined up with the set screw. Worked great,holders are cheaper
     
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  12. EmilioG

    EmilioG United States Active User H-M Supporter-Premium

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    Good to hear. The annular cutters I would like to use are 3/4" shanked with two flats. Theoretically, it should work fine.
    A sliding fit for the tool shank and two counter-bored set screws.
     
  13. darkzero

    darkzero Global Moderator Staff Member H-M Supporter-Premium

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    Thanks to Alan I now have the same holder he got for use in the lathe. I was going to order the R8 holder also for the mill but Alan "convinced" it wasn't needed. I'll just hold them in my ER40 collet chuck or use the R8 to MT3 adapter if that doesn't work out for some reason.

    Gotta love Amazon. Added the holder to an oder I was placing early this morning. Received the order the same day today, and best of all on a Sunday. Not my first order like this but it's really awesome.
     
  14. umahunter

    umahunter United States Active User Active Member

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    Can you hold these in a 3/4 inch r8 collet? ?? Anyone ever try it ????
     
  15. Hawkeye

    Hawkeye Canada Active User H-M Supporter-Premium

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    I use my 3/4" shank annulars in a 3/4" tailstock chuck. It holds them tightly, so I'd expect a collet to work well, especially if the ridge between the flats is against a solid segment of the collet.
     
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  16. umahunter

    umahunter United States Active User Active Member

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    Would one of these work 3/4 endmill holder guess I could always drill and tap the other side to add another set screw Screenshot_2017-05-18-21-23-27.png
     
  17. Rustrp

    Rustrp United States Active Member Active Member

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    I'm sure it would work but if you have a R8 x 3/4" I'm not sure why you would want to buy a holder with set screws. If I didn't have a 3/4" collet I would order one.
     
  18. uncle harry

    uncle harry United States Active User Active Member

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    Yes they do. I have a 30 mm for providing holes for push buttons. It's absolutely necessary to clamp or otherwise secure thin stock if the cutter has no pilot.
     
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  19. firestopper

    firestopper H-M Supporter - Premium Content H-M Supporter-Premium

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    Sometimes it gets very congested with the table cranked up. This R-8 weldon adaptor would be a nice addition for those awkward pieces requiring a larger precise hole.
     
  20. Rustrp

    Rustrp United States Active Member Active Member

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    I'm confused as how inserting the annular cutter directly into the collet would increase congestion. One 3/4" R8 collet would accept any of the annular cutters from many different manufactures and the length of the cutter extending from the end of the collet would be a maximum of 4" with a cutter designed for 3" depth of cut. Yes the holder would work but why would I want to purchase an end mill holder when the R8 collet will do the job? I'm aware of the pros and cons or opinions of using a solid holder vs a collet when addressing end mill creap, but the cutter isn't an end mill, it's designed for drilling fast accurate holes.

    Edit; In reading your comment again, are you referring to workpiece conjestion or ability to reach far enough, close enough, etc. without the quill interfering?
     
  21. firestopper

    firestopper H-M Supporter - Premium Content H-M Supporter-Premium

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    Correct, sometimes it's nice to have more clearance and not have the table cranked up. IMG_0026.JPG
     
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  22. umahunter

    umahunter United States Active User Active Member

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    My question was basically cost wise I can buy an r8 3/4 annular holder with 2 set screws for around 70 bucks but a 3/4 endmill holder with one set screw is 25 just wondering if a single set screw is enough if not add one more and save 50 bucks
     
  23. umahunter

    umahunter United States Active User Active Member

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    I ordered a 3/4 annular cutter that I will try in just a r8 collet if that doesn't work then I guess I'll buy a holder
     
  24. Rustrp

    Rustrp United States Active Member Active Member

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    If I was weighing this on $$ I would buy the end mill holder and drill and tap it, that is if I thought I needed two set screws. I guess we could walk into the theory arena to examine why an end mill is held with one set screw and an annular cutter uses two. My mag drill, like most mag drills, will not allow me to retract the spindle to eject the plug without both setscrews tightened, so I always use two.

    I would be hard pressed to differentiate and declare between the two holders which was designed to hold which tool, based on the number of set screws. At the same time I would be inclined to lower the table and extend the quill in an operation detailed in firestopper's photo, versus placing the annular cutter in a tool holder. I think these are personal preference but I think the farther away from the spindle we go with the cutter, the farther away we move from accuracy.
     
  25. firestopper

    firestopper H-M Supporter - Premium Content H-M Supporter-Premium

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    Save your money and just use a 3/4" collet then. I use a 3/4"collet on the mill (for now), but was trying to relay a dedicated R8 3/4" weldon adaptor would be nice to prevent the traffic jam.
    As far as accuracy, if your mill is rigid and you lock X,Y down your fine. These cutters will cut a 1/2 hole (cope pipe) without missing a beat so long as nothing moves. I plan on buying a dedicated adaptor soon to compliment a host of annular cutters I already own.
     
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  26. umahunter

    umahunter United States Active User Active Member

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    Well I bought a 1/2 cutter on ebay for 9.74 to try out which I thought was a pretty good price compared to 30 or more they were going for last I checked it's Chinese so will see how it goes
     
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