I came across this curious carbide-tipped drill bit recently. It's designed for cutting class and ceramic tile. It is marked "Cintride England." I imagine that this name was suggested by sintered carbide.
According to one forum:
"The Cintride works on the A6 just south of Bakewell closed around 1999-2000 I think. I visited on business in 1999 when they were still manufacturing drill bits there, saying they were much better than nasty foreign ones. It was obvious the company was on its last legs."
Same old story.