DMTD4F 4-in Dia-Sharp Fine Sharpener - Clear

Great for sharpening ski edges and a good price

Thank you

The DMT D4C appeared to have uneven particle size across the surface. Finer at the ends and rougher in the middle. I returned it so don't know how it worked.

I was expecting better quality from DMT

Straight as a banana. Just a horribly made tool. No.

I bought this at a deep discount and at that price it represents excellent value, at regular price I'm not so sure but it does seem to be a good stone for all those hand-held sharpening tasks. In my case its primary purpose was for putting a keen edge on lathe cutting tools (both HSS and carbide) without needing to dismount the tool. It's also useful for items like scissors and fine forceps. For large knife blades you really want to use a larger bench stone because it is more difficult to maintain the correct cutting angle with such a small stone held in your hand. One thing to bear in mind with any diamond stone - don't press the tool too hard onto the diamond surface! Let the diamonds do the work, they will cut just fine with a light touch. If you press too hard you will crush the diamonds and maybe even strip them from the surface, there isn't really much holding them in place other than electro-plating. By all means use water as a lubricant, whilst it's not needed to cut metal it does help clear the dust away and prevent clogging the stone. Just wash and dry the stone after use. This particular stone is a handy size but you may prefer to glue it onto an aluminium handle (just a length of flat barstock) with the advantage then of a better grip (for maintaining accurate cutting angles) and also the ability to use the entire cutting surface more effectively. This replaces my old eze-lap hone which finally lost its ability to cut, hope this lasts as long.