2 Pieces Diamond Retractable Knife Sharpener Steel Sharpening Rod for Kitchen Outdoor Serrated Stick Tools (Blue, Silver)

Mainly, I've used these to sharpen serrated knives.I feared that the diamonds wouldn't be well-adhered, and that the service life would be short.I'm glad to be wrong. I've sharpened four knives so far, and there's no noticeable wear -- Even under a magnifying glass.These are a great value.

Excellent product.

Great 2 piece set. They function as expected. Diamond are great for filling down metal and the 2 sides (pointy and flat) both work well. -1 star because the knurled collar retainers are a little flimsy and require extra tightening to keep the shaft in place.

Great little sharpener to carry while fishing or hunting. Easily fits in your pocket or pack. I highly recommend this product.

2 rods for a low price. Both are what I would consider a "medium" grit. Would have been better if they offered a medium and a fine in the set, but it seems no one on Amazon offers that. During the few times I've used one, I've not noticed any shedding of diamonds, which is a good thing. I would like to have a cylindrical stone for certain serrated knives, but this tapered stone works well for serrated knives such as those by Spyderco where they have both large and small serrations on the same blade. When I didn't have a leather strop handy for the final step of knife sharpening, this rod works well to make sure that you have no burr.

Sharpen knives well

Have tried this off and on and I really don't see any differences in the results, knives still need sharpening!

These sharpeners are great! work well and just clip right onto your pocket to carry with you.