Gatco Knife Sharpener: The Guided Clamp Kit That Rivals Lansky, Reviewed

People lump every clamp guided kit into one bucket and call it a Gatco knife sharpener. That happens even when the box on their counter actually says Lansky. The two brands are not the same company, and they are not interchangeable.

Look closely at the clamp, the hone selection, and who backs the product today. A Gatco knife sharpener earns real loyalty among owners who like its angle clamp. It is still worth knowing exactly what you are buying before the order goes in.

Gatco sharpeners are now sold by Bear and Son Cutlery. The original Great American Tool Company no longer makes them. That ownership change matters for parts and whether a given model is still in production.

Below is what the clamp does well according to owners. We also cover where owners run into trouble, and where a Lansky or KME kit makes more sense instead.

What a Gatco knife sharpener actually is

A Gatco knife sharpener is a fixed angle, clamp guided system. The blade locks into a clamp. A guide rod then sets the angle.

You draw a hone across the edge at a fixed geometry instead of holding an angle by eye. That is the same basic idea as the fixed angle category these clamp kits belong to.

The current lineup runs from the Edgemate Professional 5-Stone kit up through the Edgemate Ultimate Diamond kit. The Professional kit ships with extra coarse, coarse, medium, fine, and serrated hones, plus honing oil and a case. The Ultimate Diamond kit swaps in three diamond hones plus a ceramic finishing hone and a serration hone.

Gatco’s clamp on the Ultimate model is listed with six sharpening angle choices. That is more granularity than most budget guided kits give you. Manufacturer pages do not publish the exact degree figures for each setting, so treat the count as a feature rather than a labeled degree chart.

Ownership history: why “Gatco” and “Great American Tool” are not the same thing

Great American Tool Company built the Gatco name. It stopped producing sharpeners around mid 2016. Bear and Son Cutlery bought the sharpener division that November, after sharing trade show floors with GATCO for close to three decades.

Nearly every existing model stayed in production under the new owner. Manufacturing split between US and overseas facilities. A couple of legacy models were retired and replaced around the same time.

That matters today because Bear and Son now lists the Gatco line in its own catalog. Replacement clamps and hones are sold as separate accessories. If you are buying a used or older Gatco kit, confirm the model is still listed on Bear and Son’s current catalog first.

What owners actually report

Owner reviews are consistent on the upside. The guided clamp produces a genuinely sharp, even edge, and the diamond hone versions cut fast without wearing out quickly. Reviewers repeatedly describe the finished edge as shaving sharp, and several credit the angle guide with removing the guesswork in freehand sharpening.

The recurring complaint centers on the clamp itself. Owners report it does a poor job holding narrow bellied or very slim blades. Some say the jaws are hard to open wide enough for a thick hunting knife spine.

A second common note is the balancing act with larger or heavier knives. The light base competes with your stroke control while the clamp holds the blade. A third recurring complaint is the honing oil mess, which several owners solve by sharpening over a sheet of newspaper.

Gatco vs Lansky: the real differences

Both brands sell clamp and rod guided kits in a similar price range. That is exactly why shoppers confuse them. The practical differences come down to clamp geometry, angle range, and hone lineup, not a dramatic gap in sharpening result.

Our walkthrough of the Lansky clamp and rod design covers that system’s clamp and angle rod in detail.

If you already own a Lansky and are deciding whether to switch, the honest answer is that neither system is a clear upgrade. Pick based on the specific complaint you are trying to solve. That could be angle count, hone material, or clamp grip on your typical blade shapes.

The Gatco row is left without a link because Gatco is not part of our affiliate lineup. You can browse the current Gatco sharpener listings directly if the clamp design is what you specifically want.

Where to look if you want an affiliate backed pick instead

Mistakes to skip

• Buying a used Gatco kit without checking Bear and Son’s current catalog for parts support first.
• Assuming every Gatco clamp handles narrow bellied blades the same as a straight kitchen knife.
• Skipping the honing oil entirely to avoid the mess, which shortens hone life and slows sharpening.
• Expecting six angle choices to mean six precisely documented degree settings; the manufacturer does not publish that breakdown.

FAQ

Is Gatco still in business?

The original Great American Tool Company stopped making sharpeners in 2016. Bear and Son Cutlery bought the sharpener division that same year and continues to sell Gatco branded kits today.

Is a Gatco knife sharpener good for beginners?

Yes. The clamp and angle guide remove most of the freehand guesswork, which is why guided kits like this one show up often in our guided kits we recommend for a home kitchen setup.

How many angle settings does a Gatco sharpener have?

The Ultimate Diamond kit’s clamp is listed with six sharpening angle choices. Exact degree figures for each setting are not published by the manufacturer, so treat it as a range of options rather than a labeled degree chart.

Gatco vs Lansky, which clamp holds blades better?

Gatco owner reports flag narrow bellied or very slim blades as the weak spot. We did not find owner feedback showing the Lansky clamp clearly solves that. Pick by hone lineup and angle count instead.

Can I still buy replacement hones for an older Gatco kit?

Most current model hones are available through Bear and Son’s catalog. A couple of legacy models were discontinued when the sharpener division changed hands, so confirm your exact model number before ordering parts.

What is the difference between the Gatco 5-Stone and Ultimate Diamond kits?

The 5-Stone kit uses oil hones in extra coarse, coarse, medium, fine, and serrated grits. The Ultimate Diamond kit swaps in diamond hones plus a ceramic finishing hone. The manufacturer lists six angle choices on the Ultimate Diamond clamp.

For a broader look at clamp systems versus rods and pull through units, see the broader knife sharpener landscape we cover. Our wider comparison of guided sharpening kits goes deeper on other guided kits beyond Lansky and KME.

Once you settle on a clamp angle, our calculator for matching a clamp setting to your blade confirms the setting matches your blade.