All-Purpose Diamond Sharpening Set

[rik_uk3]

Sharpening set/block at Lidl
http://www.lidl.co.uk/cps/rde/xchg/lidl_uk/hs.xsl/index_37594.htm

"4 grain sizes, fine to coarse: 200, 300, 400 & 600"

Worth a punt at that price.

 

[Teepee]

They're very good for the money, mine has done quite a bit if work now.

There were one or two lumps of diamond but they quickly wore off to leave a reasonably consistent grit.