There are a variety of styles and sizes of lawn mower blades. Certain blades are designed specifically for certain lawn mowers. They come with a stamped part number that is referred to in the instruction manual.

A high-lift blade for instance, generates a powerful suction which efficiently propels the grass clippings to the point that they can be taken away for bagging. Additionally, it provides optimal air flow to prevent clogging in conditions with thick grass.


The length of the mower blade as well as the hole pattern must be identified to select the right replacement lawnmower blades. Additionally the shear pins used to locate holes and their distance to the boss of the blade must be identified. These measurements help narrow the results of your search since they correspond to the specific design of the mower blade and make sure that they are not damage to the mower’s components or creating vibrations in the mower.

Standard blades (also called 2-in-1 blades, also known as lift blades) are used most commonly on lawnmowers that have side discharge and lawnmowers without mulching or bagging. Their back edge is an upturn of a small amount that creates continuous suction and cutting action.

High lift blades feature an incredibly steep upturn on the back of the blade. They are specifically designed to be used for side discharge mowing. This blade type requires more engine power to function well. It is somewhat more expensive in fuel costs, but is great for thicker grasses that are difficult to cut using conventional blades.


The lawn mower’s blades are typically made of the most durable form of steel. It could also be constructed from iron or other metals. Steel is the most sought-after choice for mower blades because it offers a great combination of strength and durability. It is heated to make the steel harder. The process of tempering increases the toughness and durability and also the resistance to corrosion.

High-carbon steel is the best choice for mowing as it has a higher tensile strength than low carbon steel which makes it more resistant to being damaged. It is strong enough to stand up to the impact of rocks, tree stumps and other objects that could hit the blade without breaking it.

The best method to maintain the mower’s blade is to use it regularly and ensure that it is sharpened properly. The blade should also be balanced. It is possible to do this by inserting a tiny nail in the board safe and simple lawn mower blade sharpeners then using a file on it to move the nail until it reaches the center of the blade.


The sharpness of your blades depends on several factors, like how much you utilize it as well as the size of your lawn. Sharpening is more frequent when large lawns have lots of pebbles, tree roots, rocks and weeds. The continuous use of a dull mower will also result in the blade wearing down faster.

A sharp cutting edge is necessary for a clean and pleasing cut. A sharpening tool for blades will achieve this. It functions like the bench grinder, however, it is smaller and cheaper.

The blade should be balanced on a regular basis, especially after it has been honed. Sharpening may cause the blade to become unbalanced as it removes more metal from one side than the other. To check the balance, place the blade on the bolt hole, and check whether it appears level. If the blade tilts towards one side, it has to be re-filed to ensure it is balanced.


Use a special tool to sharpen the blade of a mower. It works like a drill, however it has the stone specifically designed to grip the edge, leaving no room for mistakes. This tool is much faster and precise than hand-filing. When both sides are smooth, check the balance of the blade hanging it from an anchor through the bolt hole. If the blade isn’t properly balanced, you’ll have to file it more.

To avoid an engine starting up while working on a blade, turn off the engine and remove the spark plug cable. Block the blade using an object to hold it in place while you loosen its fastening bolt with a ratchet or wrench. After reinstalling the blade make sure you know the side that is marked downward to ensure that it is placed in the right place. Spray WD-40 or a similar lubricant, onto the mounting bolt prior to tightening.

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