Why Brand New Mower Blades May Not Feel Sharp
Does your new mower blade seem dull?
When you buy a new mower blade, you might expect it to be sharp. However, brand new lawn mower blades are designed to be used as they are. They aren't dull; they cut slower and last longer. The edge is sharp enough to last for about 25 hours of mowing but is also dull enough to avoid damage from roots and rocks. A super sharp blade would bend after just a few minutes of use. Striking a rock with an overly sharp blade can bend the edge, reducing its effectiveness.
After a minimum of 25 hours of use, check the blade. If it’s still performing well and shows no damage, continue using it. If there are nicks or damage, sharpen the blade.
Frequently Asked Questions
Do brand new lawn mower blades need to be sharpened?
No, they should be used as is.
Can sharpening a new mower blade hurt the blade?
Yes. A fine edge can be damaged by rocks and roots, requiring more frequent sharpening. Each sharpening removes metal, reducing the blade's lifespan.
Will a new mower blade which seems dull kill grass?
No. New blades are not dull and are designed to cut for at least 25 hours before needing sharpening.
Can a new mower blade be used even if it seems dull?
Yes. You can use it for 25 hours before checking and sharpening as needed.
When will a new blade need to be sharpened?
Typically, after 25 hours of use, check for damage and sharpen as necessary.
