Mail-in sharpening costs about $11 to $20 a knife from a general service, and nothing but shipping if your knives are Shun or Cutco and you send them to the maker. Misen takes five to fourteen knives of any brand with shipping included. ZWILLING's Knife Aid starts at four. A specialist such as Bernal Cutlery charges by the inch and takes weeks, which is the price of hand finishing. The fees below come from each service's own page, checked October 29, 2026.
How we checked these
We read each provider's current pricing and policy page: Misen's service page and help center, ZWILLING's Knife Aid listing, Shun's sharpening page, Cutco's sharpening page, Bernal Cutlery's services page and Chef Knives To Go's mail-in page. A February 2022 Saveur test gave context on methods, and we mark anything that comes from it as 2022. We haven't used any of these services, so this is a price and policy comparison, not a quality ranking. Fees change, so confirm on the provider's page before ordering. Our service cost guide covers the in-store and local side.
Method: how we pick, from the providers' own pages, dated October 29, 2026. How we research.
Pick the type first
Six services, side by side
| Service | Published price | Shipping | Turnaround | Won't take |
|---|---|---|---|---|
| Misen | 5 knives $69 ($14 each); 7 at $13; 10 at $12; 14 at $11; loaners add $10 | Included, prepaid label and sleeves | About 72 hours in the shop per the service page; the help center says 48 hours and mailed back within 3 business days. Customer reviews on the page describe a few weeks door to door. | Blades over 16", ceramic, micro-serrated, double-serrated, hair shears, scissors that don't come apart, razors, swords |
| Knife Aid (ZWILLING) | 4 knives $59 (about $14.75 each) | Free all three ways, prepaid and insured | Not stated on the page | Not stated in the page text; it points to a knife chart and an extra-services chart |
| Shun (Kai USA) | Sharpening free; $15 shipping and processing fee in the US | You ship to Oregon in a box with tracking | About 2 weeks, up to 6 weeks including delivery | Serrated knives are honed only; handle repair, large chips, custom grinds |
| Cutco | Free for Cutco products; "nominal" return fee, amount not given | You pay to ship in; no prepaid labels | Page wording is garbled; confirm with Cutco | Page covers Cutco products only |
| Bernal Cutlery | $1.75 per inch standard; $3 hand finish or serrated; $5 single bevel | $12 US mail-in fee | Standard 4 weeks; rush 48 to 72 hours | Hair shears, weapons, swords, daggers; may refuse any knife |
| Chef Knives To Go | $20 per knife | Not stated on the page | "Within a few days of arrival" | Doesn't list refusals; chips and tips are a separate service |
All figures from the providers' pages, October 29, 2026. Bernal adds a $5 cleaning fee per dirty knife and prices rush work higher. Korin's service, rated best for professionals in Saveur's 2022 test at $17.50 a knife and about two weeks, wasn't re-checked this year, so we leave it out of the table.
The fine print that changes the price
Shun. "Free" is true of the sharpening, not the trip. The $15 is stated once on the page, which also says you can list several products on one form, and you cover postage to Kai USA in Tualatin, Oregon. Free service applies to purchases made through authorized dealers. Shun lists a 2 week estimate and, in the same breath, allows up to 6 weeks.
Cutco. Sharpening is part of the Forever Guarantee. You pay to ship the box in, and a return fee scales with the number of items. Because the amount isn't published, call or check the service request before you decide it's the cheapest route.
Knife Aid. The listing is for four knives. ZWILLING's page doesn't say how the knives are sharpened. Saveur's 2022 test rated it poorly and described an air-cooled belt, but that is a four-year-old observation about a service that may have changed. If your knives are thin Japanese steel, ask what method is used first.
Misen. The loaner option sends an 8 inch chef's knife and a 3.5 inch paring knife for $10; you can send them back or keep them at 50 percent off. Misen's own pages give three different turnaround figures, so plan for weeks rather than days.
What it costs for a real block
Take a chef's knife (8"), a utility knife (6") and a paring knife (3.5"), 17.5 inches of blade in all. Not every service takes three knives, and that limits your choices more than the price gaps do:
| Service | Three plain-edge knives | Five plain-edge knives |
|---|---|---|
| Misen | Not offered (5 knife minimum) | $69 |
| Knife Aid | Not offered on the 4-knife listing | Larger bundle price not on the page we read |
| Bernal, standard | $30.63 + $12 shipping = $42.63 | Depends on the five blade lengths |
| Chef Knives To Go | 3 x $20 = $60, plus shipping | 5 x $20 = $100, plus shipping |
| Shun, all Shun knives | $15 fee plus your postage | $15 fee plus your postage |
Bernal's total is an estimate from its published per-inch rate, and it quotes a final price once the knives arrive. The cheapest line is Shun if you own only Shun; the cheapest for mixed brands is Misen at five knives, or Bernal if your block has shorter knives.
How to pack knives for the mail
Each service sets its own rules, and they overlap enough to form a checklist:
- Wrap each blade separately in cardboard or a sleeve, and tape the wrapping closed so it can't slide off. Chef Knives To Go says to wrap in cardboard, bubble wrap or a knife guard and tape it so it can't move or cut through the packaging.
- Use a sturdy box. Shun says use a box, not an envelope; Cutco says no padded or paper envelopes, don't tape the blades or handles, and don't ship the block or tray.
- Put your name inside the box. Chef Knives To Go calls this very important, and Shun wants a copy of its request form in the package.
- Use a carrier with tracking. Shun requires it; the kit services supply a prepaid label.
- Photograph the knives before you seal the box. It takes ten seconds and settles any argument about a chip.
Scissors, serrated knives and ceramic
The edge cases cause most refusals. Misen won't take micro-serrated or double-serrated knives, ceramic, or scissors that can't be taken apart. Shun hones serrated knives and doesn't sharpen them. Bernal sharpens serrated knives at $3 an inch and turns away hair shears. For kitchen shears and garden pruners, see scissor sharpeners and sharpening scissors with a whetstone. For a bread knife, our serrated knife guide shows the home method.
Mail-in or a sharpener of your own
The question is how long until a tool pays back. Take your yearly spend on a service, then divide the tool's current Amazon price by it. Two rounds a year of five knives at Misen's 5-knife price is $138. A result under 1.0 means the tool pays for itself in the first year; 2.0 means two years. That ignores your time and the learning curve, which are real.
- The Sharp Pebble 1000/6000 whetstone comes with an angle guide, per its listing. It has a learning curve; start with how to use a whetstone.
- The Work Sharp Precision Adjust clamps the knife and sets any angle from 15 to 30 degrees. The clamp holds the angle for you; see our review.
- Between sharpenings, a 12-inch honing rod keeps an edge going longer. Honing realigns the edge; it doesn't replace sharpening. How to use a honing rod has the technique.
How often you need either route is in how often to sharpen knives. For the home route, the kitchen knife sharpener guide and best sharpening system pick up where this page stops, and for German brands, sharpeners for Henckels knives covers the same angle question.
Questions to ask before you ship
- What does it use on the blade: a water-cooled wheel, whetstones or a belt?
- What angle will my knives come back at? Match it to the maker's angle if you can.
- Who pays if a knife is lost or damaged in transit, and is the return insured?
- Are chips and repairs priced up front, or added after the work?
- What is the total turnaround, door to door?
What we'd do
Send Shun or Cutco knives to their makers, since the sharpening costs little or nothing. For a mixed block of five or more, Misen is the simplest published deal. For a good Japanese knife, pay the specialist and wait the weeks. And if you'd rather stop paying every year, pick a tool from the section above and spend the saved fees on a good steel.
Prices and policies from each provider's own page, checked October 29, 2026; Saveur's test (February 2022) for context. We haven't used these services. How we research · Affiliate disclosure