Smith's Diamond Sharpener review

Form

Discs

Grit

150-750 assorted

Material

diamond

The verdict

Where this pick fits.

Compact diamond stone with both grits on a single paddle. No special oil, no leveling, no ceremony. Get the blade sharp and get back to work.

Both grits. No oil. No fuss. Sharp before you put it back in the drawer.

Quick take

Best for: kitchen knives, pocket knives, field sharpening
Format: Discs
Tier: Budget tier
Grit lane: 150, 180, 220, 320, 400, 600

Use it when

The fit is obvious.

· Reach for the Smith's Diamond Sharpener when the job is kitchen knives, pocket knives, and field sharpening: that is the fight it was built for.
· Diamond is the only grain hard enough to boss stone, glass, and cured concrete around. Everything else just negotiates.
· This is refinement territory. It flatters a surface that is already close; it will not rescue a rough one.

Skip it when

The job asks for something else.

· Leave it if you are actually solving a different stage of the climb than the one this pick was chosen for.
· Leave it if longevity and cut speed matter more than the price: cheap abrasive is cheap for reasons you feel on the tenth sheet.
· Leave it if the work is edges, profiles, and tiny repairs: those are easier to control by hand.

Best for

Where it earns its keep.

· kitchen knives
· pocket knives
· field sharpening
· everyday use

Keep moving

Useful next clicks.

Read the grit chartSee where this pick sits in the full climb.Browse projectsSee the exact grit climb for your job.

Buyer questions

The practical questions.

What is the Smith's Diamond Sharpener actually good at?

Compact diamond stone with both grits on a single paddle. No special oil, no leveling, no ceremony. Get the blade sharp and get back to work. In short: it earns its keep on kitchen knives, pocket knives, and field sharpening.

Is 150-750 assorted the right grit lane for this?

It sits closest to 150 grit, 180 grit, 220 grit, 320 grit, 400 grit, and 600 grit. This is the working middle of most sanding progressions: enough bite to matter, refined enough not to leave the job stranded.