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  1. #1
    Join Date
    Nov 2007
    Location
    melbourne australia
    Posts
    3,228

    Default ⅝" (16mm) diameter knurl supplier?

    I'm trying to source ⅝" diameter knurls for the holder I made years ago. I made it to take a pair of knurls I already had, but I haven't been able to source new ones in Oz. LPT Toolmakers has them in 19mm only. MSC in the US has a huge range, but postage will make it unviable.

    Where do you guys get your knurls? There are sellers on eBay, but that can be a lottery. I'm happy to buy from eBay if someone has a recommended seller.

    I'm open to the idea of opening up the holder to take ¾" knurls, but I'd rather not.
    Chris

  2. #2
    Join Date
    Sep 2008
    Location
    Riddells Creek, Vic.
    Posts
    831

    Default

    Robert Boyar has all sorts of Oddball stuff, it's worth a call just to ask. Boyar Tool Co ? Trading in Quality HSS, Cobalt and Carbide Cutting Tools For Over 50 Years.

  3. #3
    Join Date
    Jul 2006
    Location
    Athelstone, SA 5076
    Posts
    4,255

    Default

    I get mine from USA

    https://accu-trak.com/index.php

  4. #4
    Join Date
    Nov 2007
    Location
    melbourne australia
    Posts
    3,228

    Default

    Thanks Gents. I emailed both. Waiting to hear from Boyar.

    Unfortunately Accu-Trak have a minimum order of USD100. Postage is USD15-25. That's more than I'm prepared to spend. It's a pity, as their product looks very good.

    Axminster and Chronos in the UK don't have knurls in 5/8 x 5/16. If Boyar can't help, I'm heading towards modifying the holder to take ¾ x ⅜ knurls.
    Chris

  5. #5
    Join Date
    Oct 2011
    Location
    Norwood-ish, Adelaide
    Age
    59
    Posts
    6,540

    Default

    Might be worth modifying anyway, as 3/4" knurls seem to be more common and with a larger range.

    Michael

  6. #6
    Join Date
    Nov 2007
    Location
    melbourne australia
    Posts
    3,228

    Default

    I’m going to do that Michael. Cheers.
    Chris

  7. #7
    Join Date
    Aug 2015
    Location
    Melbourne, Australia
    Posts
    843

    Default

    agree - might be worth modding to go with the 3/4" range if possible. I got a bunch of different types of 3/4" knurls from ali express last year (erm, or so) for very little $. They seem very hard, but I do notice some small variation in ID. So, they might have to be ground to be uniform - but, price was good.

    PXL_20200925_091045134.jpg

    And .. no ... I've not yet made a knurling tool to hold them! "real soon now".

    Greg.

    EDIT: only last night I went through "tom's techniques" channel on his clamping knurling tool. Very nice. https://www.youtube.com/watch?v=prlQ...MC3zYW6loyd4Gq

  8. #8
    Join Date
    Nov 2007
    Location
    melbourne australia
    Posts
    3,228

    Default

    Quote Originally Posted by StrayAlien View Post
    They seem very hard, but I do notice some small variation in ID.
    Thanks Greg. Do you mean the bore? That’s what worries me about the Chinese ones.

    I got a price of $52+GST per pair from Boyar Tool Company. For that price they should be a quality brand. I’m waiting for confirmation of that before placing an order.
    Chris

  9. #9
    Join Date
    Sep 2012
    Location
    York, North Yorkshire UK
    Posts
    6,439

    Default

    Hi Guys,

    I bought a pair of knurling wheels from China last year, 3/4" X 1/4" bore. They are as hard as can be. But if your are looking for 6 mm bore, I couldn't find any.
    Best Regards:
    Baron J.

  10. #10
    Join Date
    Aug 2015
    Location
    Melbourne, Australia
    Posts
    843

    Default

    Jack, yes. The bore. When I get there, I'll likely just use the dremel as a small tpg to make them consistent. When I get there!

  11. #11
    Join Date
    Nov 2007
    Location
    melbourne australia
    Posts
    3,228

    Default

    Quote Originally Posted by BaronJ View Post
    Hi Guys,
    I bought a pair of knurling wheels from China last year, 3/4" X 1/4" bore. They are as hard as can be. But if your are looking for 6 mm bore, I couldn't find any.
    Thanks John,
    Bore is irrelevant as I will reaming the existing 7/32 hole out to suit the new size knurl. While I have a 6mm reamer and not a ¼" reamer, I reckon ¼" is going to offer me a lot more options. So I'll buy a ¼" reamer.

    I don't doubt your knurls are hard. The Chinese can make hard steel. But are they accurate? Well matched? Sharp? Smooth surface finish? My research tells me these things make a difference to the result. Nothing worse than spending a lot of time on a project then marring it with crappy knurling (I've done that too many times).

    I'm also going through a "no China" phase at the moment. I know it can't last.

    Accu-Trak gave me these guys as an agent in the UK. Do you know them? Advanced Technology Machines
    No website, so I've emailed them and asked for a price list. Hopefully they don't have minimum order limit like Accu-Trak.
    Chris

  12. #12
    Join Date
    Oct 2004
    Location
    Southern Highlands NSW
    Posts
    1,894

    Default

    Patrick Moyle in Sydney might be worth a call.
    02 9799 8444

  13. #13
    Join Date
    Jul 2006
    Location
    Athelstone, SA 5076
    Posts
    4,255

    Default

    Quote Originally Posted by jack620 View Post
    Thanks John,
    Bore is irrelevant as I will reaming the existing 7/32 hole out to suit the new size knurl. While I have a 6mm reamer and not a ¼" reamer, I reckon ¼" is going to offer me a lot more options. So I'll buy a ¼" reamer.

    I don't doubt your knurls are hard. The Chinese can make hard steel. But are they accurate? Well matched? Sharp? Smooth surface finish? My research tells me these things make a difference to the result. Nothing worse than spending a lot of time on a project then marring it with crappy knurling (I've done that too many times).

    I'm also going through a "no China" phase at the moment. I know it can't last.

    Accu-Trak gave me these guys as an agent in the UK. Do you know them? Advanced Technology Machines
    No website, so I've emailed them and asked for a price list. Hopefully they don't have minimum order limit like Accu-Trak.

    what size..i need some extra ones, are you willing to share proportional weight freight to SA and then postage to Melb?

  14. #14
    Join Date
    Sep 2012
    Location
    York, North Yorkshire UK
    Posts
    6,439

    Default

    Quote Originally Posted by jack620 View Post
    Thanks John,
    Bore is irrelevant as I will reaming the existing 7/32 hole out to suit the new size knurl. While I have a 6mm reamer and not a ¼" reamer, I reckon ¼" is going to offer me a lot more options. So I'll buy a ¼" reamer.

    I don't doubt your knurls are hard. The Chinese can make hard steel. But are they accurate? Well matched? Sharp? Smooth surface finish? My research tells me these things make a difference to the result. Nothing worse than spending a lot of time on a project then marring it with crappy knurling (I've done that too many times).

    I'm also going through a "no China" phase at the moment. I know it can't last.

    Accu-Trak gave me these guys as an agent in the UK. Do you know them? Advanced Technology Machines
    No website, so I've emailed them and asked for a price list. Hopefully they don't have minimum order limit like Accu-Trak.
    Sorry Chris, I don't ! I'd not heard of them.

    So I did a lookup and got this back from Google.Advanced Technology Machines

    www.atmmt.com


    Unit 4, Molly Millar's Bridge Wokingham Berkshire RG41 2WY United Kingdom: Telephone: Fax: 0118 977 0099 0118 989 2288: Email: [email protected]

    Follow the links !




    As far as buying knurls from China is concerned, If I remember correctly I only paid around £4 postage free for mine, what annoys me is the six weeks it took to get them and now they are quoting nine to twelve weeks, or having you pay almost as much again for express delivery, suggesting that you will get your order in seven to ten days. I've also noticed that they seem to want to deliver from Europe now. Russia, Czech Republic, Poland and Spain.

    HTH
    Best Regards:
    Baron J.

  15. #15
    Join Date
    Nov 2007
    Location
    melbourne australia
    Posts
    3,228

    Default

    Quote Originally Posted by eskimo View Post
    what size..i need some extra ones, are you willing to share proportional weight freight to SA and then postage to Melb?
    Certainly keen to share postage. My holder currently takes ⅝" x 5/16" x 7/32" knurls. Was considering modifying it to take ¾ x ⅜ x ¼ knurls. However, if can share the postage from Accu-Trak I'll probably leave it as is and buy ⅝ knurls.

    I got a cryptic reply from Accu-Trak today saying the reason for the $100 minimum is because there's a lot of paperwork required to ship goods to India. Odd, given that I told her I live in Australia. I reiterated I'm in Oz and asked if that changed things. I guess I won't get a reply until next week now.
    Chris

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