Dual Whetstone Grit Combinations - Coarse Grits

“Whet” means to sharpen.

The whetstones in this chart have a COARSE grit on both sides.

An abrasive surface of “≤ 1000” is considered to be a coarse grit.

Coarse Whetstone Options Are:

900.WS1.1860

900.WS2.2480

900.WS3.2410

180 Grit - Repair

240 Grit - Repair

240 Grit - Repair

600 Grit - Repair

800 Grit - Repair

1000 Grit - Sharpening

Whetstones with grit surfaces of 1000 or less are used to repair blades that are very dull, or blades that may even be damaged (chipped or nicked edges for example). Grit levels measured at ≤ 1000 work the fastest to create “more abrasion”, to wear down the blade until it is smoothed or re-shaped.

Use these whetstones on blades that are dull and have completely lost their edge!

The coarse grit whetstones above are meant to do the hard work!

Caution: These whetstones are abrasive; a lot of material will be taken off the blade. Start with less pressure at first to make sure the blade is not being further damaged.

These stones are recommended for repairing dull or damaged blades.  Low grit stones do not leave the best finish on a blade.

Instructions for Use:

• 1. Immerse the stone in water for 5 minutes, or until the stone stops producing bubbles in the water.
• 2. Place the stone on top of a solid, secure surface (rubberized shelf liner, a silicone mat, folded towel, etc.) to make sure it stays in place during use.
• 3. Start with the coarsest side up. With the blade facing away from your body, hold the knife by the handle and place the heel of the blade edge against the stone at an angle of 15 – 20°.
• 4. With moderate pressure, slide the blade forward across the whetstone; ensure that the entire length of the blade edge moves across the stone at a constant angle.
• 5. Repeat several times (no more than 10) and then check the sharpness of the first side of the blade.
• 6. To check sharpness, carefully run your thumb perpendicular to the edge of the blade; when you can feel 
• 7. a burr from the handle to the tip, that side of the blade is sharp enough. Safety Tip: DO NOT RUN your finger PARALLEL to the blade.
• 8. Repeat the above as necessary until the blade is sharp.
• 9. Now, turn the knife over to sharpen the other side of the blade edge.  At first this will feel strange, as you are not holding the knife handle in your dominant hand.
• 10. Once the blade is sharp, the burr must be removed. Turn the whetstone over (finer side is up).  

• 11. Repeat the process above on both sides of the blade edge to remove the burr until the edge is sharp.