Secateurs Maintenance Guide: Cleaning, Oiling and Sharpening

Quick answer: clean sap and plant residue after use, dry the secateurs completely, protect the pivot and exposed carbon steel with a light suitable oil, and sharpen only when the cutting edge actually needs it. Most damage comes from using the wrong tool for the material, forcing a cut, storing the tool wet, or changing the original blade geometry while sharpening.

Cutting capacity is model-specific. Some SUWADA garden secateurs are designed for live wood up to about 15 mm, while compact, flower and fine-pruning models have lower limits or different intended uses. Dry or dead wood can be much harder than fresh growth, so a live-wood capacity should not be treated as a universal limit for every material.

A simple after-use routine

1. Wipe away sap, moisture and plant residue.
2. Dry the blades, handles and pivot area completely.
3. Apply a small amount of suitable oil to the pivot and exposed carbon-steel surfaces where appropriate.
4. Store the secateurs in a dry place.
5. Sharpen only when the edge needs it, preserving the existing blade geometry.

1. Use the secateurs within their intended capacity

Do not force or twist secateurs through material beyond the model's stated capacity. If a branch is too thick, too hard or outside the intended use of the tool, move to a more suitable cutting tool.

Do not use garden secateurs to cut wire. Wire and other hard materials can damage a pruning edge. Use a dedicated wire cutter when required.

If you are unsure which model suits your work, see our guide to choosing Japanese secateurs or browse the Japanese Secateurs collection.

2. How do you clean sap and light rust from secateurs?

Wipe the blades after use so sap, moisture and plant debris are not left on the cutting surfaces. Fresh residue is much easier to remove than material that has dried onto the blade.

For stubborn sap, light surface rust or dirt, a small cleaning pad such as our Rust & Sap Remover can be used carefully with a small amount of suitable blade oil, followed by wiping the blade clean and dry.

If the tool is heavily rusted, badly chipped, misaligned or no longer closes correctly, stop before aggressive cleaning or grinding removes more material.

Pruning after rain? Read Can You Use Secateurs on Wet Plants? for the difference between wet-weather plant-health concerns and tool-care concerns.

3. Carbon steel vs stainless steel care

Traditional high-carbon steel needs particular attention to moisture. After cleaning, dry it thoroughly and apply a light protective film of suitable oil before storage, especially after exposure to sap or damp conditions.

High-carbon stainless steel offers greater corrosion resistance, but it is not maintenance-free. It still benefits from cleaning, drying and keeping the pivot free-moving after use.

A secateurs holster is useful for carrying compatible models while you work, but long-term storage should still be dry.

Cuts becoming ragged? Before sharpening, see Why Are My Secateurs Making Jagged Cuts? to check whether the cause is dullness, sap, blade alignment, branch hardness or cutting position.

4. Can Japanese secateurs be sharpened?

Yes. A good pair of secateurs can be sharpened when the cutting edge begins to lose performance. The important point is to follow the existing edge rather than creating a new bevel or removing unnecessary material.

How often should you sharpen them? There is no useful fixed schedule. Sharpen when the edge needs it. Cleaning and correct use should happen much more often than sharpening.

How to sharpen secateurs without changing the edge

1. Clean and dry the tool first so you can see the cutting edge clearly.
2. Prepare the sharpening stone according to the stone manufacturer's instructions. If it is a water stone, wet or soak it as directed.
3. Keep the central nut in place for routine sharpening unless the tool's maintenance instructions specifically require disassembly.
4. Sharpen the angled side of the blade, following the existing curve and bevel rather than trying to create a new angle.
5. Check the flat backside for a burr. Remove only the burr with the stone held flat against that surface.
6. Do not grind a second bevel onto the flat backside, as this can change the way the blades meet and cut.
7. After sharpening, wipe the tool clean, dry it and apply a light protective coat of suitable oil where appropriate.

If you are unsure of the edge geometry, or the tool is chipped, bent or misaligned, stop before removing more material.

5. Springs and moving parts

If a spring has worn out or been lost, use the model number on the tool to select the correct replacement. Secateur springs are not universally interchangeable, even when two springs look similar.

See our guide to choosing the correct replacement secateur spring for model identification and the verified SUWADA Large/Small compatibility list, or go directly to our replacement secateurs springs.

Keep the pivot clean and moving freely. A small amount of suitable oil around the joint can help maintain smooth movement after cleaning.

6. What about dead wood, very hard wood or wire?

Dry or dead wood can be considerably harder than fresh live growth, so the live-wood cutting capacity stated for a secateur should not automatically be applied to dry material. If the material feels unusually hard, knotted or resistant, switch to a tool intended for heavier work rather than increasing force.

Wire should be cut with a dedicated wire cutter, not with pruning blades.

7. When should you stop and ask for help?

Routine cleaning, drying, oiling and careful sharpening can be done at home. Stop and contact us if the blades are badly chipped, the tool no longer closes correctly, the pivot is damaged, the jaws are misaligned, or you are unsure how a particular model should be sharpened.

Choose the right tool first

Maintenance is easier when the secateurs are used for the work they were designed to do. Compare the current range in our Japanese Secateurs collection, read the secateurs choosing guide, or replace a verified worn spring with our SUWADA replacement springs.