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Thread: OD reduction sleeves for boring bar tool holder

  1. #1
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    petertha's Tools

    OD reduction sleeves for boring bar tool holder

    My 250 series boring bar tool holder is meant for 1" OD round shank boring bars & that's the only size sold. But more often I use smaller OD bars like .500" or 0.625". So I made these split sleeves from steel cut offs. They hold the bar securely with the same cap screw clamping mechanism & of course you can tweak the boring bar rotation angle before securing. Nice thing is, just like any other cutting / tool holder, you can temporarily remove it & re-install the exact same way preserving setup. The sleeves go into either end of the block as a pair, which was easier to machine than a single, long (+2") long split sleeve.

    OD reduction sleeves for boring bar tool holder-img_0914_edited-1.jpgOD reduction sleeves for boring bar tool holder-img_0915_edited-1.jpgOD reduction sleeves for boring bar tool holder-img_0916_edited-1.jpgOD reduction sleeves for boring bar tool holder-img_0917_edited-1.jpgOD reduction sleeves for boring bar tool holder-img_5525_edited-1.jpg

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  2. The Following 14 Users Say Thank You to petertha For This Useful Post:

    freddo4 (Feb 12, 2020), Home-PC (Sep 26, 2022), j.bickley (Jan 7, 2018), Karl_H (Feb 12, 2020), LMMasterMariner (Jan 9, 2018), olderdan (Jan 7, 2018), Paul Jones (Jan 7, 2018), PJs (May 15, 2018), RetiredFAE (Nov 15, 2022), rossbotics (Jan 9, 2018), Seedtick (Jan 7, 2018), Skun Knuckles (Mar 29, 2023), Starman (Jan 7, 2018), Toolmaker51 (May 15, 2018)

  3. #2
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    Great idea. I'm in the same predicament and have been wondering about how to get around it. Thanks!!
    ---Joe

    2000 Tool Plans

  4. #3
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    Thanks petertha! We've added your Boring Bar Holder Sleeves to our Machining category,
    as well as to your builder page: petertha's Homemade Tools. Your receipt:






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