Can this be used to re-flatten a damaged chisel grind edge on a chisel or flat grind knife?

Absolutely not. This is a honing stone flattener not a honing stone.

How do i keep my flattening stone flat. what grits do i use on each side??

Just using it re-flattens its surface each time. There will never be a time to flatten the flattening stone. Use course/mediums (less than ~600) on the course side and all fines (more than ~600) on the fine side

How flat is this "flattening stone" ?

This flattening stone is flat and did a great job flattening an old sharpening stone I had laying around for years. It’s worth the price.

Can I use this flattening stone on a whetstone 12000

I would ask the seller to be sure but I think you can by using the fine side ok

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Sharp Pebble Flattening Stone - Dual Grit 120/320 Whetstone Flattener | Restore Any Sharpening Stones, Oil Stone & Ceramic Stone in Minutes - Extra Large 8" Diamond-Groove Silicon Carbide

Product ID: 188690249

Details

Brand
Sharp Pebble
Color
Gray
Grit Type
Coarse Fine
Item Weight
1.6 Pounds
Manufacturer
Mighty Dreams
Material
Black Silicon

📏Extra-large 8-inch flattening surface

🔄Dual grit 120/320 for coarse & fine

⏱️Re-level stones in ~5 minutes

$85.53

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Description

🪨 Flatten your stones, sharpen your edge, and never miss a cut!

DUAL GRIT VERSATILITY - Switch effortlessly between aggressive 120-grit and fine 320-grit surfaces—no extra tools needed.
FULL SIZE FLATTENING POWER - Large 8-inch surface covers your entire whetstone in one smooth pass for even, efficient results.
DIAMOND GROOVE WASTE CHANNELING - Innovative groove pattern clears slurry as you work, keeping the abrasive sharp and clog-free.
RESTORE LIKE NEW SHARPNESS FAST - Re-level your worn whetstones in minutes to maintain perfect sharpening angles and razor edges.
PREMIUM SILICON CARBIDE DURABILITY - High-quality black silicon carbide cuts fast and lasts longer, backed by responsive Sharp Pebble support.

The Sharp Pebble Dual Grit Flattening Stone features an extra-large 8-inch surface with 120 and 320 grit sides, crafted from premium black silicon carbide with diamond grooves to quickly and efficiently re-level water, oil, and ceramic whetstones in about 5 minutes, ensuring consistent sharpening performance and extended stone life.

Specifications

ASIN	B082YH4HTZ
Best Sellers Rank	#33,412 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #43 in Sharpening Stones
Brand Name	Sharp Pebble
Color	Gray
Customer Reviews	4.3 4.3 out of 5 stars (1,556)
Grit Type	Coarse, Fine
Included Components	Large Flattening Stone
Item Dimensions L x W x H	7.99"L x 2.79"W x 1.1"H
Item Weight	1.6 Pounds
Manufacturer	Mighty Dreams
Material Type	Black Silicon Carbide (Japanese Quality)
Model Number	SP120320
Number of Items	1
UPC	658848369645
Unit Count	1.0 Count

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$85.53

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

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The product quality is outstanding. Exactly what I needed for my work.

1 month ago

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