Had been thinking about needing a 4mm chisel for decorative square plugs and perhaps small dovetails. Seeing as my current set of 6 marples are functional my idea was to get a similar 6mm from Bunnings and grind it down. I discovered that my local Bunnings (Shepparton) is clearing it's 6 and 10mm Marples chisels, the 10's are already sold out and after I took a 6 there are only two left. It's possible that other stores are doing the same.

Ben