Standard delphin knife, carbon dipped. It will wear off but until then Hydrotech did them for me, I have his number if anyone wants it. He can do loads of different designs
Update!! If anybody decides they want this done, don't use it to rough in Adam Carpets Boulevard! Bloody backing was that course, it rubbed the coating off. Luckily I noticed after the first cut so now it lives in the lvt toolkit
