Tim W wrote:
Andy Dingley
wibbled on Sunday 20 December 2009 23:52


http://www.screwfix.com/prods/95958
Those aren't.

The usual "cobalt" drills these days have a "cobalt" (sic) coating on
them, giving a bluish rainbow look. They're cheap, Chinese, and made
of a secret alloy of rubber and bananas. No earthly use for anything.

Yeah - I was thinking more about the claimed ability to drill various
substrates. The Bosch drills do work, (limited depending on substrate, very
well on others).

If I were the OP I'd buy the Bosch which has some record of usability before
a random TV ad set.

I had no intention of buying them thanks :-)
I was just curious to know a bit more about them.

Dave