Hi Andy

Most biscuit cutters have a 8mm hole in them, so to say use one of your other router bit shanks with the 8mm shank on it..

Trend U*T370X1/4TC GUIDED BISCUIT JOINTER 5/32 CUT | Ace.Tool.com - The Tool Experts

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Is there a 1/2" collet for your router?

 

From Trend
http://www.trend-uk.com/en/UK/product/06748/4/207/collet_12_for_makita_3612br_.html

 

Yes, its a 1/2 inch router, but it just seems to be a bit slack. All other 1/2 inch router cutters are 12.7mm. Just wondering if there was a way for this to fit with reducer

 

Do not use an 12mm shank in a 1/2" collet. If you manage to tighten it enough to grip you'll probably ruin the collet and if you don't the bit will come out and give you an unpleasant surprise.
There are reducers available for 8mm
4 pc Collet Reducer Bushing for 8mm, 1/4" Router Bit - eBay (item 140371773484 end time Feb-02-10 16:30:44 PST)

but for 12mm you'll need an actual 12mm collet as there would be insufficient wall thickness to create a 1/2" to 12mm one.

They are certainly available for DeWalts 12MM ROUTER COLLET FOR DEWALT DW625EK on eBay (end time 06-Feb-10 16:44:23 GMT) and I would have thought Makita do them for the European market. You didn't say where you are from, though.

Cheers

Peter

 

From Inverness,Scotland. Yeah so i need to buy i need collet altogether. So why do they sell 12mm and not 1/2inch, bit silly is it not

 

Looks like you got an oddball one. Did you get it directly from them ? Their webpage shows 1/2" shanks
http://www.trend-uk.com/en/JA/productlist/3/87/biscuit_jointers.html

If you got it directly, see if they will swap it.

Cheers

Peter

 

Will this one not do?
http://www.trend-uk.com/en/UK/en/UK/product/06748/4/207/collet_12_for_makita_3612br_.html