Sharpen the tools in the pocket knife

The task of sharpening a penknife often only refers to the blade of the big knife. But depending on the model, scissors, saws and other tools can also be used. If you have an original Swiss army knife, you can make use of a comfortable service. For all others independent handwork is announced.

Allow flexible grinding movements

Those who think about sharpening and sharpening a pocket knife often refer to the blade of the big main knife. Of course, other tools, such as scissors or saw, can become dull over time, depending on the equipment and the type of use. In a general overhaul, the sharpening of all utility blades makes sense.

In any case, so-called sanding table machines should be avoided, through which knife blades should be pulled. These devices take no account of concave or convex blade shapes and also usually carry quite roughly. Also known from the kitchen wetzstangen made of metal are only partially suitable for pocket knives.

Grind large and small knife blade

The most ideal is a grindstone for sharpening the knife blades. The finest and cleanest sanding results produce Japanese water grindstones. After moistening, the unfolded and locked knife blade on the grindstone is alternately moved back and forth. The bevel and the blade should be tracked.

To obtain the correct grinding angle, the bevel, ie the chamfer on the cutting edge, should be placed on the grinding stone in such a way that it extends an imaginary course line of the chamfer angle. As a control, the observation is used for resulting scratches, which are absent when the angle is right. As Schleifsteinkörnung 800 to 1000 is recommended. The blade is always moved to the cutting edge on the whetstone.

Important after sharpening is the removal of the burr, which always arises. It is removed with cross-shaped grinding movements at a 45-degree angle. A very fine final removal can be made with a leather flap or belt, over which the blade is finally drawn twice in both cross directions.

Scissors sharpen and sharpen

The small pair of scissors in a pocket knife can be sharpened well and simply with a little sandpaper. First, 200 grit abrasive or emery paper should be cut into small pieces. The paper should be turned over after half of the cuts.

In the second round, the grain size is increased to 400 to 600. In total, at least about twenty cuts should be made on each side of the abrasive paper and on both grits. This corresponds to about a hundred times the scissor blade length.

Sanding and sharpening saws

Pocket knives have different types of saws. The spectrum ranges from the simple wood saw with teeth to the bone and meat saw with double-barreled pyramid teeth. These saws can hardly be sharpened at home, since the complex three-dimensional structure requires different grinding directions, depths and angles.

While original Swiss army knife can be sharpened by the manufacturer in special procedures with grinding methods made for it, the sharpening ability is not always given with no-name models.

Tips & Tricks

Thoroughly clean your pocketknife after sharpening as dirt inside could make the sharp blades dull again.

Video Board: How to Sharpen a Pocket Knife | The Spyderco Sharpmaker