OT- World’s Most Expensive R8 Collets? - Page 2
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  1. #21
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    Quote Originally Posted by Ries View Post
    In our modern world, things are expensive, especially quality stuff.
    How did you get R8 and 'quality' into the same sentence ?

  2. #22
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    Quote Originally Posted by EmanuelGoldstein View Post
    How did you get R8 and 'quality' into the same sentence ?
    Here it goes again, comparing R8 Bridgeport J-Head type machines, to a Cincinnati or VMC...

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    new collets from R-8 Collets 1/8" - 3/4" - Mach-1 Systems are 79.00 each

    the complete system including the drawbar and tooling is 1495.00

    We have 5 of these system and they work great

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  5. #24
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    It looks similar to a pullstud.
    Seems like you could make those as inserts and thread them into regular R8 collets and tooling/endmill holders.

    Quote Originally Posted by solidworkscadman View Post
    new collets from R-8 Collets 1/8" - 3/4" - Mach-1 Systems are 79.00 each

    the complete system including the drawbar and tooling is 1495.00

    We have 5 of these system and they work great



    Sent from my iPhone using Tapatalk

  6. #25
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    I sold my R8 Bridgeport over 20 years ago, but before that I had run some production parts with 1/8 inch tools. Made little collars for the tools and was able to change them fairly quickly and the collars made them surprisingly accurate on length repeatability.
    Used the same collars on the GT for presetting tools for the live tooling spindles.

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  8. #26
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    Quote Originally Posted by projectnut View Post
    They certainly aren't worth $150.00 a piece on the used market. Last year I bought a set of Hardinge 5C collets by 1/32nds to 1 1/8". I paid $7.00 per collet. I also bought a set of R8 collets 1/16'-3/4" for $3.00 per collet. There are currently several lots of Hardinge 5C listed on eBay for as little as $6.00 per unit. The only R8 (non-quick change) collets listed have an asking price of $14.50 each.
    I said "quick change". not 5C.

    Harding quick change lathe collets are much more expensive, just as any quick change collets for a bridgeport are much more expensive than regular R8s.

    like these- ShopHardinge - 45210000000000

    if you are going to compare apples to apples, you need to be clear we are talking about quick change collets here, for whatever machine.


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