To be honest I don't know Marc, I buy them from a local flooring supplier or from Sweeney Todd tools online.
there are fakes out there which are crap, but the originals are a great tool.
Not the most used but, my favourite tool has to be my fein, brilliant for so many things, undercutting architraves, trimming, sockets in plasterboard. I've also recently added the cordless dewalt multitool to my collection, just as good but no lead. Everyone should own a multitool.
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