1 8

Cheefarcuut Vitrified Diamond Sharpening Stone – 400 Grit, Fast Cutting for Super Steels like ZDP189 & S90V

$119.00 USD $99.00 USD
Sale Sold out

Ships from USA / Hong Kong

Free US shipping | Other regions

Ships with full tracking

Grit
🔒 Secure checkout with Visa, MasterCard, Amex, PayPal & Shop Pay
Visa MasterCard Amex PayPal
Cheefarcuut: Razor Sharp in Minutes

⚡ 10 strokes to burr: M390, REX121 under ~2 min

💎 100x longer life vs electroplated: 5mm 100% Vitrified Diamond

🔪 Shreds super steels like nothing: ZDP189, S30V and more

📏 Wide and solid: 8.27 × 2.76 in(210 × 70 mm), stable for more knives

💪 Easy from repair to razor sharp: #400 Stone + Lethear Strop

🧪 Cleaner finish: uniform scratch

Target Use

🍳 Home & Professional Kitchens

🏕 Outdoor & EDC Players & Other Professionals

💪 VG10, SSG2, CPM110V, REX121 & Super Steels

🔪 Rapidly repairing chipped edges & Sharp knives and tools

🚫 Not for ceramic/glass knives or mirror polish finishing.

Compatibility & Capacity
Stone Holders:

🪵 Come with a wooden holder

📏 Fits most 210×70 holders.

Knife Compatibility:

🧪 From standard stainless to the hardest super steels.

🔪 Kitchen knives, outdoor knives, EDC folders, tools

Build Quality & Materials

💎 100% Monocrystalline Diamond — #400

🧪 Vitrified bond, non-electroplated

🧱 Rigid, flat slab — 0.2 in (5 mm)

🧰 Aluminum base — 0.6 in (15 mm)

🇭🇰 HK Design | 🇨🇳 Made in China

📏 8.27 × 2.76 ×0.8 in (210 × 70 × 20 mm)

Included in the Box

🎁 Ready to use, all essentials included:

💎 400 Grit Vitrified Diamond Stone

🪵 0.25μm Strop Board (Deburring Board)

📦 Storage box (doubles as base)

📐 Angle Reference Wedge ×1

📘 User Guide

Join the Community
🔗Lab-Tested Sharpness Results
🔗 YouTube Test Video
🔗 Forum Review (KKF)
🔗 Join Our Facebook Group
Use & Care
💧 Rinse after use
🧽 Use microfiber cloth below
🧽 Wipe dry to stay dry
🚫 No chemicals or soaps
Tutorial Manual
Customer Service
🤝Chat with us - real human support
📩 support@cheefarcut.com
View full details
Overview FAQs Reviews
Cheefarcuut Vitrified Diamond Sharpening Stone – 400 Grit, Fast Cutting for Super Steels like ZDP189 & S90V

Cheefarcuut Guided Knife Sharpener | Vitrified Diamond, 4-U-Bearing System

Buy Now
Introduce the “New Species”

Cheefarcuut Pro stones are built around cutting speed, not a slow, glassy waterstone feel. The vitrified bond has strong “grip,” allowing an ultra-high diamond phase (~80%) and continuous exposure of fresh cutting points. The result is a true fast cutter: you can raise a burr in very few passes and get back to a clean working edge quickly.

AND Pro Tips For the Pro Stones

Use lighter pressure. Because the stone cuts so efficiently, heavy force is unnecessary and can reduce control. Most users get the best scratch uniformity and feedback at ~1/3 the pressure they’d normally use on traditional waterstones (especially when using edge-trailing strokes).

Faster Cuts, Longer Life,
Just the Stone You Need.

Cheefarcuut Diamond,
Cuts the Hardest Steels.

100% Monocrystalline Diamond,
Vitrified

400 grit
10.2 in(5mm) stone
0.6 in(15mm) aluminum base
8.27 × 2.76 in(210×70) mm footprint

100% Monocrystalline Diamond, Vitrified
Super Steels? Solved.

Burr in ~2 min on M390/REX121
Toothy bite, fast stock removal
Feedback proves it

Super Steels? Solved.
100× Lifespan vs Electroplated

>20,000 strokes, still cuts
No plating, no shed

Even Scratch, Controlled Depth
Even Scratch,
Controlled Depth

Faster clean-up on #1000+

Edge Transformation Process
Wide, Stable,
More control

8.27 × 2.76 in (210 x 70mm) surface
0.6in (15mm) base
No wobble, no slip

Wide, Stable, More control

One Stone,
Your Entire Arsenal.

Made For Pros
Kitchen · Outdoors · Workshop

From chef knives to axes
Yes to ALL Straight edges but no to serrations

Wide, Stable, More control
Works on all steels

From basic stainless to ultra-hard PM steels
Not for ceramic

Wide, Stable, More control
#400 + Strop = Work-Sharp Edge

Pre-loaded Diamond Leather Strop
Deburr micro-burrs in seconds
3-min pre-shift touch-ups

#400 + Strop = Work-Sharp Edge

Which Stone Is Right For Me

The following grit chart is what Cheefarcut has in current development. The following grits are available for current and immediate purchase and order fulfillment (200/400/1000 pro & 400/1000 double sided). All other grits are scheduled to be released within 30 days.

SKU Thickness (A/O) Grit Notes Application
Home-400/1000 4/11 mm (2/side) #400/1000 Double-sided Side #400: heavy touch-ups, chip control, fast bevel set on stainless & PM steels.
Side #1000: quick daily sharpening; durable toothy work edge for chef/santoku/petty/EDC.
Home-2000/4000 4/11 mm (2/side) #2000/4000 Double-sided Side #2000: fine sharpening & clean deburr; lower friction for smooth push-cuts.
Side #4000: pre-polish/finish for glide cuts and plating; not for bone work.
Home-3000/5000 4/11 mm (2/side) #3000/5000 Double-sided Side #3000: pre-polish with slight bite—great for sujihiki/gyuto when presentation matters.
Side #5000: finishing; remove residual burr and enable glide cuts; presentation grade.
Pro-200 5/20 mm #200 Single-sided Heavy repair: rapid chip removal and bevel reprofile on severely dull edges; resets geometry fast (not a working finish).
Pro-400 5/20 mm #400 Single-sided Bevel set & fast burr; aggressive stock removal; leaves coarse tooth for boxes/rope/hard skins; ideal pre-step to #600/#1000.
Pro-600 5/20 mm #600 Single-sided EDC tooth: coarse, durable micro-serration that matches the fiber scale of cardboard/rope/wood; quick tune-ups; bridges to #1000.
Pro-800 5/20 mm #800 Single-sided Refines coarse scratches while keeping a “meaty” bite; raises keenness without losing purchase—excellent for poultry/meat prep.
Pro-1000 5/20 mm #1000 Single-sided Fast sharpening for most kitchen knives; long-lasting working edge that balances bite and glide; the go-to daily finish.
Pro-2000 5/20 mm #2000 Single-sided Fine sharpening & pre-finish; clean deburr and reduced cutting friction—ideal for smooth veg/protein cuts.
Pro-3000 5/20 mm #3000 Single-sided Pre-polish with slight bite; smooth push-cuts and neat plating; great for sujihiki/gyuto and refined EDC edges.
Pro-4000 5/20 mm #4000 Single-sided Fine pre-finish/finish; tunes bite while maximizing glide for presentation slicing. Prefer #1–2K if a toothier edge is desired.
Pro-5000 5/20 mm #5000 Single-sided First finisher: remove residual burr and true the apex; glide-cut oriented for sashimi/slicers; avoid for bone contact.
Pro-6000 5/20 mm #6000 Single-sided High-polish finishing; refine the apex and lightly strop for razor feel; push-cut/presentation priority, not for rough prep.

Don't Take Our Word For It
Check the Community and Test By yourself

Science Behind
Edge Transformation Process

Passivated edge: identify dull, rounded tips
Burr formation: raise and detect burrs
Sharp apex completion: remove burrs

Science BehindEdge Transformation Process
Verified by Knife Forums,
Tested by Enthusiasts

Achieve sub-100 BESS across user tests
Confirmed by sharpeners like Rramski and Zylok

Verified by Knife Forums,Tested by Enthusiasts
Sharpen Fast: Pro Tips

Lock your angle (15–20° dps)
Recommended pressure ~ 1500-2000g
Pre-soak 1–5 min for smoother feedback

Sharpen Fast: Pro Tips

Pros Make Pros For Pros

Four-generation craft lineage sinces 1925
In-house development based on field experience
Process optimization over years

Pros Make Pros For Pros
× Full view
Frequently Asked Questions
Get the answers you need — sharpen your confidence.
Will #400 be too coarse for my kitchen knives?
No—#400 is the right starting grit for dull edges, setting a new bevel, and fixing small chips. For a finer bite, follow with #1000 and then the included leather strop.
I see tiny grooves / dents on the stone surface — is something wrong?
Usually this comes from edge-leading “cutting” strokes with too much pressure (especially at the tip). Under high force, the edge can bite into the surface and shave off a thin top “velvet-like” diamond layer — like a chisel peeling a wood shaving. How to prevent it: switch to edge-trailing (spine-leading) strokes, use lighter pressure, and land/lift the tip gently. If it already happened: it’s typically cosmetic. You can lightly recondition the surface with a flattening plate using the same pencil-grid method in our tutorial/manual.
Why does this “1000” sometimes look more aggressive than a typical 1000 waterstone?
Because this is a high-cutting vitrified diamond stone. Our Pro-1000 uses ~13 μm diamond and is designed to expose more active cutting points, so the scratch pattern can look stronger than what users expect from a slow-cutting waterstone. If you want a smoother visual finish, simply lighten pressure for the last few passes or follow with #2000+.
Do I need to soak it?
Water only; splash-and-go. Brief soak (~1 min) gives you better feel. Do not use oil.
How do I choose the correct sharpening angle for different knives?
Angle defines edge character — not right or wrong, just trade-offs:
10–12°/side: Japanese gyuto, slicers, razors — ultimate bite, lower durability
15–18°/side: western chef knives, petty — balanced edge
20°+/side: outdoor, cleaver, work knives — max durability

You can use the Angle Reference Wedge included, or a guided sharpener (our Cheefarcuut Guided Knife Sharpener) if you want precision and repeatability.

Pro tip: stick to one consistent angle family across your knives — it simplifies burr management and speeds up the entire progression.

For more specific angle recommendation, check our digital manual.
I sharpened both sides, but the knife is still not sharp. Why?
Make sure you’ve raised a burr after sharpening each side. Use a stone ≥ 1000 grit, refine with single-direction strokes, and don’t forget to use the leather strop to remove all burrs.
Does the vitrified diamond stone need flattening? How often, and how should I do it?
Yes — though vitrified diamond holds flatness far longer than resin or water stones, it still benefits from occasional truing.

When you notice uneven wear, pencil-grid the surface and check. If the grid doesn’t erase evenly after a few strokes, flatten it using a Cheefarcuut flattening plate #140 / #400 or SiC powder (80–220 grit) on glass/granite. Rotate the stone regularly during use to even wear.

Suggested frequency:
Home users: check every 1–2 months
Heavy users/pro sharpeners: every 1–2 weeks

For more info, check our digital manual.
How to use the leather strop without scratching?
Keep the stone angle (optionally +1–2° micro-bevel). Use light, even pressure ≈ 250 g / 0.55 lb.
Orientation & force: tip backward, spine forward, and pull with the spine leading so the edge trails. No back-and-forth. Do 5–10 light pulls per side.
Feel cue: glide as if skimming off a thin layer of sand from the strop.
Why is the logo “cheefarcuut” but the website is “cheefarcut.com”?
Both are official trademarks with the same mission — bringing professional sharpness to everyone.