How to Sharpen Hedge Shears with a Grinder – Everything You Need to Know

Hedge shears are essential tools for anyone responsible for keeping shrubs and hedges in their garden looking neat and well-manicured. But, like any tool, hedge shears require regular maintenance to ensure that they remain sharp and effective. 

Have you ever tried to cut through dense shrubbery, only to find your hedge shears don’t have the sharpness they need? If so, you know it can be frustrating and time-consuming. To get the most out of your hedge shears, you should sharpen them regularly. 

Fortunately, this is easy to do with a grinder. In this blog post, we’ll discuss why it’s so important to sharpen your hedge shears regularly and provide you with an in-depth guide on how to sharpen hedge shears with a grinder! 

Why It’s Important to Sharpen Your Hedge Shears 

Sharpening your hedge shears is essential if you want them to last a long time and do their job properly. Dull blades can damage the plants they come into contact with, as they won’t be able to cut cleanly through the stems or leaves. 

This will leave jagged edges on the plants, which can slow down their growth and reduce the overall aesthetic appeal of your garden. On top of that, dull blades can also cause strain on your hands as you have to apply more force in order for them to cut through the material. 

When you sharpen your hedge shears regularly, you will be able to enjoy cleaner cuts and less strain on your hands when trimming your shrubs or hedges. Sharp blades also make it easier to get an even look across all parts of the shrub or hedge – something that is near impossible if you are using dull blades. 

Also, sharpening your hedge shears regularly will help prevent rusting or corrosion as these problems tend to occur when blades get too dull. 

How Often Should You Sharpen Your Hedge Shears? 

The answer depends largely on how often you use them; if you use them daily then it’s best to sharpen them at least once a month. If you only use them occasionally then once every two months should suffice. 

It’s also important to inspect your blades before each use in order to identify any nicks or chips that may have occurred since the last time they were sharpened; this way, you can address any issues before they become a problem. 

What You Will Need 

Before you start sharpening your hedge shears with a grinder, you will need the following supplies: 

  • Safety glasses or goggles 
  • Work gloves 
  • A vice or clamp 
  • A bench grinder  
  • Cleaning cloths and rags 

Sharpening the Shear Blades  

Once you have gathered all of the necessary supplies, it’s time to begin sharpening your hedge shears. Here are the steps that must be taken: 

Step 1:

Securely fasten the blades to the vice or clamp. Make sure that they are securely held in place before continuing. It is also important to make sure that your hands are far away from any moving parts in order to avoid injury during this process.  

Step 2:

Put on safety glasses or goggles and work gloves for protection against sparks and flying debris during sharpening.  

Step 3:

Set up the bench grinder according to the manufacturer’s instructions. Depending on the type of bench grinder you have purchased, there may be additional steps that need to be taken when setting up for use (such as attaching grinding wheels). Be sure to follow these instructions carefully before beginning sharpening of any kind.  

Step 4:

Carefully place each blade against the grinding wheel while it is spinning at full speed. Do not touch any moving parts as this could result in serious injury or damage to property.  

Step 5:

Gently move each blade back and forth against the wheel until it has been sufficiently sharpened. Once finished, turn off both machines and remove any remaining debris from each blade using a cleaning cloth or rag.  

Step 6:

Check each blade for dull spots before releasing them from their clamps/vice. Repeat steps 4-5 if needed.  

Step 7:

Wipe down blades once more and store them safely until the next use. Taking care of your tools will help prolong their life span and ensure that they remain in good working order for years to come! 

Safety Precautions to Keep in Mind When Sharpening Hedge Shears

When sharpening hedge shears, it is important to keep in mind a few safety precautions.

  • First and foremost, be sure to wear protective gear such as safety glasses or goggles, work gloves, and closed-toe shoes.
  • Additionally, try to avoid overworking the blades as this could cause them to become too brittle and break from excessive use.
  • Also, read and follow the manufacturer’s instructions carefully when setting up and using the bench grinder.
  • Finally, always work on a flat and stable surface to avoid any slips or falls. 


Sharpening hedge shears can be an intimidating task if you don’t know what you’re doing but with some patience and practice, anyone can learn how! By following these simple steps, you should now know how easy it is to sharpen your own tools using only a vice, grinder, and some basic cleaning supplies!

Take proper care of your tools by storing them safely after each use, and keep an eye out for dull spots which might require extra attention during future sharpening! We hope that this guide has been of use to you and that you can now maintain the perfect edge on your shears! Happy gardening!