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IndustryArena Forum > Manufacturing Processes > Milling > BT30 1/8" End Mill Holder 1" Projection Length
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  1. #1
    Join Date
    Jun 2021
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    18

    BT30 1/8" End Mill Holder 1" Projection Length

    Does anyone know of a BT30 1/8" end mill tool holder that has a projection length of less than 1.75"? I need one to hold an engraving bit, and I'm hoping to find something closer to 1". Thanks!

  2. #2
    Join Date
    Jan 2005
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    15362

    Re: BT30 1/8" End Mill Holder 1" Projection Length

    Quote Originally Posted by Joz234 View Post
    Does anyone know of a BT30 1/8" end mill tool holder that has a projection length of less than 1.75"? I need one to hold an engraving bit, and I'm hoping to find something closer to 1". Thanks!
    There are a few options this is one of the shortest Tool Holders you can get, this would use a ER collet

    Rego-Flex BT30/ER11 2130.11110
    ERA Zero-Z

    You may be able to use this also, but would have to make a Holder to fit your cutter

    https://www.ebay.com/itm/33284990734....c100667.m2042
    Attached Files Attached Files
    Mactec54

  3. #3
    Join Date
    Feb 2011
    Posts
    353

    Re: BT30 1/8" End Mill Holder 1" Projection Length

    What i use for engraving is an endmill extension from genswiss called Ti-Loc
    the ones that i use fit a er16 tool holder 16mm and 25mm long they also have a screw to allow you to swap tools to the same length

    https://www.genswiss.com/er_taper_in..._cte.htm#tab-3

  4. #4
    Join Date
    Jan 2005
    Posts
    15362

    Re: BT30 1/8" End Mill Holder 1" Projection Length

    Quote Originally Posted by rcs60 View Post
    What i use for engraving is an endmill extension from genswiss called Ti-Loc
    the ones that i use fit a er16 tool holder 16mm and 25mm long they also have a screw to allow you to swap tools to the same length

    https://www.genswiss.com/er_taper_in..._cte.htm#tab-3
    These are good, but not what he was wanting
    Mactec54

  5. #5
    Join Date
    Jun 2021
    Posts
    18

    Re: BT30 1/8" End Mill Holder 1" Projection Length

    I don’t think the genswiss products are quite what I need, but thanks for the input! I have some 1/8” tools that I need to engrave a face, but I’m having some clearance issues so I’m trying to find a shorter tool holder. After looking at those Rego-Fix tool holders it seems their projection length is 1.97”, which is unfortunately too long for me. That 1” tool holder from eBay looks promising, but I can’t find a 1/8” tool holder that size, the smallest I can find is for 1/4”. The smallest bit I need to hold is .005” x 1:8” shank, so I’m worried about runout on some type of adapter I make. Anyone know of a better solution, or precision 1/4” to 1/8” shank adapters? Thanks!

  6. #6
    Join Date
    Jan 2005
    Posts
    15362

    Re: BT30 1/8" End Mill Holder 1" Projection Length

    Quote Originally Posted by Joz234 View Post
    I don’t think the genswiss products are quite what I need, but thanks for the input! I have some 1/8” tools that I need to engrave a face, but I’m having some clearance issues so I’m trying to find a shorter tool holder. After looking at those Rego-Fix tool holders it seems their projection length is 1.97”, which is unfortunately too long for me. That 1” tool holder from eBay looks promising, but I can’t find a 1/8” tool holder that size, the smallest I can find is for 1/4”. The smallest bit I need to hold is .005” x 1:8” shank, so I’m worried about runout on some type of adapter I make. Anyone know of a better solution, or precision 1/4” to 1/8” shank adapters? Thanks!
    What type of cutter are you using

    The runout would be as accurate as what you can make the adaptor you get a piece of Ground bar and machine and lap the hole to suit your cutter, the best way to retain the cutter is with Loctite been doing small cutters this way for years, you can use a shrink fit or Loctite both ways are excellent for cutters like this
    Mactec54

  7. #7
    Join Date
    May 2009
    Posts
    37

    Re: BT30 1/8" End Mill Holder 1" Projection Length

    From Alibab you can get BT30 split collets that have virtually zero projection, they use an M12 drawbar. If you used say a 10mm or 12mm collet (or imperial equivalent) then make an adapter from steel with a carefully drilled and reamed hole for the cutter and loctite the cutter in place, as suggested by another respondent. This way you can make the projection almost as small as you want.

    Quote Originally Posted by Joz234 View Post
    Does anyone know of a BT30 1/8" end mill tool holder that has a projection length of less than 1.75"? I need one to hold an engraving bit, and I'm hoping to find something closer to 1". Thanks!

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