Sharpening a flat grind knife requires a few simple steps. First, you’ll need to prepare your workspace. Choose an area that has ample space and good lighting. Gather all the necessary materials, including a whetstone or sharpening stone, water or oil for lubrication, a strop if desired, microfiber cloths for cleaning, an angle-setting tool if desired, and any other tools or accessories you prefer.

Once your workspace is prepared and you’ve gathered the right tools and supplies, it’s time to sharpen your knife! Start by soaking your whetstone in water (or add oil if using an oilstone). When the stone is thoroughly soaked, start the sharpening process by positioning the bevel of wall flat grinded knife at a preferred angle of 15-20 degrees with respect to the stone’s surface. Keep this angle consistent while moving the blade across the whetstone using uniform strokes away from you in direction towards opposite end. Next, apply additional pressure on both ends of blade as it presses against stone in order to remove fines from previous grind cycle and sharpen quickly.

After 15-20 sharpening intermissions on coarse side of clothe (depending on level of grinding) flip over and then repeat same number of intermissions on fine side – done in contrast way – starting at opposite end moving back towards yourself throughout whole length of blade’s cutting edge. Once finished rinse off knife with clean cloth as well as rinsing off stone itself before storing them back away from working area after each use.

Lastly, if desired strop can also be used – which involves single pass along smooth leather surface & applying light pressure throughout until gleaming finish achieved over cutting edge surface; followed by removing random burrs that may still lurk along its shapely form with some felt pads or soft fabric strip until polished end result reached – ready for use!

What You Need

Sharpening a flat grind knife is a fairly simple process, but does require certain materials. The most essential item for the job is a sharpening stone. It can be either water or oil soaked and will usually come in two different grit sizes. A coarser grit size acts as a primary sharpener, while the finer side of the stone helps to refine and polish the edge of the blade. Depending on how dull your knife is, more than one pass may be necessary to get it back to its intended sharpness.

In addition to a sharpening stone, another tool that will help you sharpen a flat grind knife is an optional honing rod. This is primarily used if your knife edge needs to be realigned after sharpening or if you don’t have access to a full-sized sharpener or bench grinder. Besides that, you’ll need some kind of lubricant (such as mineral oil or paraffin) to help bring out an even sharper edge by minimizing metal on metal friction during grinding. Using lubricant also prevents overheating which can ruin the temper of your knife over time and reduce its overall life span and cutting performance if done too often.

Prepping the sharpening stone

Before using a sharpening stone to sharpen a flat grind knife, it is important to first prepare the stone. This preparation might begin by soaking the stone in water for several minutes, and then rinsing it off. Alternatively, some prefer to use oil-based solutions, such as honing oil. Either way, the goal is to evenly coat the entire surface of the stone with liquid.

Once lubricated, it’s essential that you check your stone’s surface for any rough or rough spots. If there are any irregularities on the surface of your sharpening stone, use a piece of sandpaper or a file to gently get rid of them before proceeding with sharpening your knife. This step is crucial because these irregularities can cause your blade to become dull faster after sharpening.

Finally, hold the flat grind knife at an angle that matches that of your sharpening stone’s and make rhythmic movements across its surface until it starts becoming sharper – but not too sharp! When done correctly, this technique should result in an edge that’s as sharp as possible without any nicks or scratches on its surface which could ultimately cause more damage than good over time.

Understanding the Angle

When sharpening a flat grind knife, the angle of the blade is essential for achieving a good edge. This angle, also known as the bevel, is the part of the blade that meets at an incline, creating a wedge-like tip that can be used for cutting and slicing. The most common bevels used with flat grind knives range between 20 and 25 degrees.

To sharpen your flat grind knife, all you need to do is hold it securely in place, gently apply pressure against a sharpening stone and use circular motions along the blade’s edge. If required, repeat this process on each side; make sure to evenly distribute pressure while keeping a consistent angle throughout the sharpening process. Afterward, use a leather strop or honing rod to remove any burrs on the blade before it’s ready to use. It’s also recommended to apply some oil or wax to both sides of the blade before storing it away. Doing so will help keep your knife looking like new for years to come!

Drawing the Knife

Sharpening a flat grind knife is best done using circular motions that conform to the angle of the blade. Start by laying the blade against the sharpening stone and draw it backwards in light, even motion across the surface of the stone. Make sure that you are holding your other hand firmly on top of the blade as you do this. Your Drawing motion should remain as close to parallel with the angle of the blade as possible so make sure to pay attention to how you are drawing it backward. Keep track of how many laps around the circumference of your sharpening stone you are making and work consistently until evenly honed all over. Pay extra attention to any rough spots or nicks which may require more time and pressure when sharpening before testing its sharpness on a piece of paper or even a tomato skin. If you are having difficulty following or controlling your circular motions against the knife’s angle try drawing it backwards until it stops, resetting from there and continuing again – eventually speed will improve with practice!

Checking Your Progress

When sharpening a flat grind knife, it is important to make sure the angle and motion of the knife is correct. To check your progress, you can test the sharpness by slicing through paper or dragging the blade across your fingernail. When slicing through paper, look for clean cuts – if the edges are frayed or torn, it means that the angle of your grind must be adjusted to be more acute. If you are dragging the blade across your fingernail and it does not slice off a thin thread of skin, then this indicates that the grinding needs to be done for a longer duration or with greater pressure applied. Once you have achieved a sharp edge on your knife, then you will need to regularly maintain it by using wet stones to keep the blade sharp. Once in awhile, retest the knives on paper and/or drag across a fingernail to check that it maintains its edge – if any fraying occurs then you must resharpening as soon as possible.

Taking Care of Your Knife

Storing your Flat Grind Knife: To ensure the longevity of your flat grind knife, always store it in a clean and dry place. Always keep it away from harsh temperature and humidity levels. If possible, you may want to invest in a good knife sheath for further protection.

Preventing Damage: Make sure to use your flat grind knife for its intended purpose. Avoid using it as an opener or pry bar. When you are done using the knife, re-sheath it or if not applicable, securely store it away in a clean and safe area. Keep the blade oiled and cleaned regularly as well to ensure that rust and corrosion do not occur over time.

Sharpening Your Flat Grind Knife: In order to sharpen your flat grind knife properly, you will need a sharpening stone (a fine grit one is best). Start by placing the stone on a stable surface with its grit side up. If available, secure the stone in place with a clamp. Run the blade across the stone at an angle of around 15 degrees towards yourself and make sure that each stroke covers two thirds of the length of the blade for optimal sharpness results. There should be little to no resistance when you draw the blade across the sharpening stone so only apply light pressure during these strokes as excess pressure can damage both the handle and blade of your flat grind knife. Once finished, wipe down your freshly sharpened knife with a dry cloth before putting it back into storage!


Sharpening a flat grind knife requires several steps in order to effectively sharpen the blade and produce an edge that is safe, reliable and sharp. The process includes developing the bevel, stoning the bevel, stropping and finally stropping the microbevel. Developing the bevel involves setting two separate angles – one on either side of the blade – with a sharpening stone or machine. Stoning is done to refine the existing angle of the existing bevel making it smoother and more consistent, while stropping brings up a burr along one side of the blade to refine both sides of it. Finally, stropping the microbevel fine-tunes and refines your edge as well as polishes your blade to make it sharper. Practicing any skill takes dedication—practice often and learn from mistakes so that you can achieve professional level results.