Nothing as far as I can tell… I think they were just trying to make it look like a trebuchet. I will say that this item has worked well for me and I’ve gotten much sharper edges on my knives.

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SHARPAL194H Whetstone Knife Blade Sharpener Sharpening Stone Angle Guide, Chisel/Plane Iron Blade Honing Guide, Knife Edge Angle Finder, Knife Sharpening Trainer (Angle from 15° to 45°)

SHARPAL194H Whetstone Knife Blade Sharpener Sharpening Stone Angle Guide, Chisel/Plane Iron Blade Honing Guide, Knife Edge Angle Finder, Knife Sharpening Trainer (Angle from 15° to 45°)

Q: Help is this item made of plastic, aluminum or metal?

I was expecting a metal product but it is made from a polymer not un-like power tools.

Q: Can't see what wheels are for?

they arent wheels, they just look like it in the pics. They are the points that the 2 measurement things pivot in

Q: Does it work on stainless steel, like 440C?

This little video shows a Morkniv Kansbol Stainless and a Buck 110 drop point in their 420HC. Hope this answers your needs.

4.0/5

Product ID: 516678747

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12 interest-free installments with tabby

Details

Material
Plastic
Brand
SHARPAL
Colour
Black
Product dimensions
5L x 2.4W x
Item weight
7.6 Grams

🔪Razor-sharp edges

🧲Magnetic base

⚙️Angle range 15°-45°

Frequently Bought Together

SHARPAL 194H Whetstone Knife Blade Sharpener Sharpening Stone Angle Guide, Chisel/Plane Iron Blade Honing Guide, Knife Edge Angle Finder, Knife Sharpening Trainer (Angle from 15° to 45°)

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Description

🔧 Sharpen your skills, not just your blades!

DURABLE DESIGN - Crafted from high-quality materials for long-lasting performance.
SECURE STEADY - Magnetic base keeps your guide in place, ensuring a smooth sharpening process.
ACHIEVE PRECISION - Perfectly sharp edges every time, tailored for both pros and novices.
PORTABLE CONVENIENCE - Built-in lanyard hole for easy transport, sharpening on-the-go!
VERSATILE ANGLE SETTINGS - Customize your sharpening angle from 15° to 45° for any blade type.

The SHARPAL 194H Whetstone Knife Blade Sharpener is an essential tool for achieving precise and long-lasting sharpness on knives, chisels, and plane iron blades. With adjustable angles from 15° to 45°, a secure magnetic base, and a durable design, this sharpening guide is perfect for both beginners and professionals. Its lightweight and portable design, featuring a built-in lanyard hole, makes it easy to carry and use anywhere.