do u have to use oil or water?

This stone requires water. I suggest that you soak it submerged for 24 hours before the first use. Turn it over several times during the 24 hour period. Each time you turn it over you will see new bubbbles of air escaping from the stone. Use the stone while WET! In subsequent uses, soak for between 20 minutes to 2 hours depending on how much 'new' air is escaping from the stone. I understand oil can be used in addition to water but I am told and have demonstrated that it is unneccessary. Good Luck!

What size is the stone?

The stone is 7 inches long, 1 inch high and 1 and 1/4 inch wide. Works very well. Just need to let it dry out if you store it away so you don't get mildew being in a closed container.

what micron does the grit uses?

The grit is measured in CAMI (Coated Abrasive Manufacturers Institute) nomenclature as 1,000 grit (1000 particles per inch) or about 10.3 microns.

Is the stone supposed to dissolve? Just started using it and it seems to be dissolving as I use it.

Technically no. All stones will wear but this one is super soft. I won't be buying again. I've already had to flatten mine after only having used it a few dozen times.

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Whetstone Knife Sharpening Stone – Dual Sided 400/1000 Grit Water Stone – Sharpener, Polishing Tool For Kitchen, Hunting, Pocket Knives Or Blades

Whetstone Knife Sharpening Stone – Dual Sided 400/1000 Grit Water Stone – Sharpener, Polishing Tool For Kitchen, Hunting, Pocket Knives Or Blades

Product ID: 252052685

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Details

Material
Carborundum
Brand
Whetstone
Colour
Limestone
Product dimensions
17.8L x 5.7W x
Item weight
635 g

💧Water-activated sharpening

🔪Dual grit precision

🛠️Multi-tool versatility

Description

🔪 Sharpen your edge, sharpen your life.

UNIVERSAL SHARPENER - Perfect for kitchen knives, hunting blades, scissors, and even axes
RAZOR EDGE RESTORATION - Bring dull, tired blades back to professional-grade sharpness in minutes
WATER ONLY LUBRICATION - Eco-friendly and mess-free sharpening with just water—no oils needed
DUAL SIDED GRIT MASTERY - 400 grit for edge reshaping, 1000 grit for a polished razor finish
COMPACT DURABLE DESIGN - Silicon carbide stone built to last, sized for easy handling and storage

The WhetstoneKnife Sharpening Stone is a durable dual-sided silicon carbide water stone featuring 400 and 1000 grit surfaces for reshaping and polishing blades. Designed for versatile use on kitchen, hunting, and pocket knives as well as other cutting tools, it requires only water for lubrication, restoring dull edges to razor sharpness efficiently. Compact and robust, it’s an essential tool for professionals and enthusiasts aiming to maintain peak blade performance.