Guy King wrote:

The all look like this...
http://www.screwfix.com/app/sfd/cat/...18678&id=58494

appart from the decent light weight ones that look more like:-

http://www.screwfix.com/app/sfd/cat/...54139&ts=29848


The OP might want to look at the Drills and Drilling FAQ as well:
http://www.diyfaq.org.uk/powertools/drillfaq.htm

and the SDS one:

http://www.diyfaq.org.uk/powertools/sds.htm


--
Cheers,

John.

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