I purchased this diamond drag engraving bit 10 years ago and I cannot figure out the manufacturer or where I bought it. It was a great bit and I did hundreds of engravings with it till I jammed it into a vice and broke off the tip.

I bought two other engraving bit that worked ok but the tips have broken very easily after only a few jobs so I would love if anyone has an idea who this original one was made by and if I can get replacement tips for it.

Thanks in advance.