Forget whetstones, life's to short, I never use them and hardly any pro chef's I know do.
For manual sharpening try this:-
Work Sharp Precision Adjust Knife Sharpener : Amazon.co.uk: Home & Kitchen
Most kitchens I go in use these, I have one and it works great:-
Chef's Choice 1520 Diamond Hone Angle Select Electric Knife Sharpener : Amazon.co.uk: Home & Kitchen
P.S I have worked in ** and *** star kitchens.
For manual sharpening try this:-
Work Sharp Precision Adjust Knife Sharpener : Amazon.co.uk: Home & Kitchen
Most kitchens I go in use these, I have one and it works great:-
Chef's Choice 1520 Diamond Hone Angle Select Electric Knife Sharpener : Amazon.co.uk: Home & Kitchen
P.S I have worked in ** and *** star kitchens.