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  1. #1
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    Default Replacement spiral cutter blades?

    Gday all,

    I have a Carbatec spiral headed thicknesser, the CT-330x.

    The little blades have finally worn out and i've just swapped them around to the second face.

    There are two questions, perhaps people might know....

    - Carbatec charge $65 for a 10 pack of HSS and $108 for Tungsten blades. Does anyone know where I might get them at a more economical price? The machine takes 26 cutters.

    As a note, the blades are 14mm*14mm*2mm with two cutting surfaces with a 6mm centred hole.

    - Next! Given they are HSS, any reason they couldn't be sharpened just like a chisel?

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  3. #2
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    Dec 2005
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    Canberra
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    Default

    Theoretically they could be sharpened, but I think a jig approach (holding a stack of them) would be the way to go. Maybe ask at Fitch and see what they say.

    And as for non Carbatech priced replacements, many industrial tools for metal use replaceable inserts so it might just be a case of checking sizes to see if they are a standard or custom size.

  4. #3
    Join Date
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    Default

    Carbitool have carbide inserts that size with a 6.5mm hole and 4 cutting edges. Part number is PL 14 14 2​, price is $3.96 inc GST each

  5. #4
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    Default

    Thanks for the leads.

    I swapped them around and the results are astonishing. I forgot just how amazing fresh cutters are.

    There is a company (Steel City) in the US that sells the same model. They sell boxes of 10 for $21 (or so) in Carbide. I'm not after rock bottom prices, just something reasonably priced.

    It would seem after a google search, that the model is fairly generic and rebadged with minor variations by many companies. Master Splinter is correct, I pulled out a tooth and measured it and it's a 14x14x2mm with a centred 6.5mm hole. These cutters seem to come in only 2 sizes and is indeed an industry standard, the 14mm one being the smaller.

    Thanks for the lead on Carbitool. I'll whack them an email now.

    It will be good to put carbide cutters in. I love that thicknesser, it's a very good little unit.

  6. #5
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    Default

    This is the link: http://www.highlandwoodworking.com/s...terheads-.aspx

    They are USD$39 each.

    Opps, I got the dumb on the price!

    3 packs would be usd$120, plus the usd$25 for redirect using comGateway (unless SteelCity are Nice Guys with their post to here).... so all up, its aud$167 for 30 carbide cutters. Sure, expensive, but given carbide is NICE and lasts a lot longer.....

    Then again, the HSS ones that came with it have done very very well. I've put a million km's of material through it and only turned them around the first time yesterday. They look eminently sharpenable.

    I also found out they are called "indexable inserts". This is why my searches were so useless. Might go look at Alibaba and see what pops up....

  7. #6
    Join Date
    Apr 2012
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    Default

    Hi,


    Are you sure about those dimensions for the cutters?
    I measure mine to be 14.3 x 14.3 x 2.5.
    This is important, as I've read of some who have purchased 14mm cutters and put them in and found they all slightly twisted leaving lots of parallel lines across the finish.


    I got a quote for carbide inserts from China at around $1.50 an insert but I needed a minimum order of around 10 sets so left it.

  8. #7
    Join Date
    Jan 2009
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    Default

    Note also that the cutters in some heads have a curved edge, some have a square edge. It is important that you get like for like. Most engineering supply shops can identify and supply. There is a standard methodology for classifying and specifying these insert cutters.
    There ain't no devil, it's just god when he's drunk!!

    Tom Waits

  9. #8
    Join Date
    Aug 2008
    Location
    Brisbane
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    Exclamation

    Yep I went through your pain and couldn't pay the prices that Carbatec or Machinery House charge, so I got the manufacturer I use for making my custom router bits (for Guitar fret board radiusing) I got a plenty made and selling them on Ebay for $99 for a FULL set of 26.

    I am new to these forums and have tried to post in the Ebay auction forums but for some reason it doesn't appear to show up after I post it.

    Any if you look for sje-tools on Ebay you'll find them!

  10. #9
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    Default

    http://www.ebay.com.au/itm/Accu-Head...-/181667032879

    You now have an official fan base technocracy. I'm ordering a set of K01's right now.

    Might I suggest buying an add for the right hand side of the forum to spread the word?

  11. #10
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    Default

    You will get at least 10 times more life out of Carbide Cutters. I would love one of the heads
    The fact remains, that 97% of all statistics are made up, yet 87% of the population think they are real.

  12. #11
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    Exclamation

    Quote Originally Posted by elanjacobs View Post
    Carbitool have carbide inserts that size with a 6.5mm hole and 4 cutting edges. Part number is PL 14 14 2​, price is $3.96 inc GST each
    Just want to comment on this - I've seen some comments around on the web about 4 blade cutters for the accu-head cutter - all I can say is don't waste your money on them as they do not work due to how the head levels the blade.

    The rear of the blade sits flush against a "step" in the head which in turn is slightly lower than the blade, so when you put an insert with 4 cutting edges in the rear edge has a bevel so it doesn't actually seat against the "step" in the head to hold them level. In short the only way a 4 cutting blade could work is by making the blades thin enough so the tip of the blade is flush against the "step". This however has a couple of issues firstly the blades are thin already so making them thinner reduces their strength, also the blade will be being held level by the very fine tip of the blade, put both of these factors together and for me it looks like a recipe for blades fracturing and god knows what kind of injuries from the possibility of fractured carbide flying at high speed!

  13. #12
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    Default

    Well I knew I had to do sooner or later however as the question got asked on Ebay - the question being why K05 and not the harder K01? My answer being:

    Hi,

    This was something I have just done a video which I will post on YouTube - basically as you say the K05 is the standard carbide which most insert/blades are made from, whereas K01 is a hard and slightly finer grade.

    As I explain in the video - there is very little difference between the 2 other than as the K05 is a not as hard as the K01 it's slight more forgive to woods - so it does handle softer wood slightly better than K01. You'll see in my video when I post it the soft pine finishes look smooth from both the K01 and K05 however rubbing fingers over it you can feel the K01 has slight lines (and I mean slight as in barely visible without hold the timber on an angle in light!). For Cypress Pine and Merbau you get the pretty much the same results between the K05 & K01, however with the figured Cadagi timber the K01 gives a noticeably smoother finish.

    From a blade sharpness and wear perspective there is essentially nothing between the grades - one other point which I have touched on in the video is that is you have any intention for machining green or treated timber K05 is definitely the better choice since as it's not a hard it's not as brittle and has better shock resistance (as with all material the harder it get the more brittle it gets).

    Either way the blades give great finishes what ever the timber!

    Cheers

    Steve

    Once I've tidied up the video and cut down on my witterings I'll post it on YouTube later.

    Thanks all

    UPDATE: Video is now on YouTube and can be found via the Auction - currently only K05 blades are available - will be restocking the K01

  14. #13
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    Default

    K01's are currently sold out - awaiting delivery date from supplier as when they'll be back in stock - based on previous orders normally a 2 week turn around.

    Cheers
    Steve

  15. #14
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    Sep 2012
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    AUstralia
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    Default

    Received mine yesterday, Thanks Steve, Very fast delivery.... Haven't installed them yet, but they look excellent...
    Quote Originally Posted by sje-tools View Post
    K01's are currently sold out - awaiting delivery date from supplier as when they'll be back in stock - based on previous orders normally a 2 week turn around.

    Cheers
    Steve

  16. #15
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    Default

    All I've had word back from the factory - K01 inserts will be back in stock 2nd week in March.

    Cheers
    Steve

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