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Outdoor & Garden · Garden tools

Nisaku NJP650 Hori Hori Weeding Knife Review

The one tool we reach for first

Karen VerifiedA confident recommendation with strong overall performance and acceptable compromises.
By Karen Verified EditorsPublished Oct 8, 2025Updated Sep 20, 20266 min read

As an Amazon Associate, Karen Verified earns from qualifying purchases. That never changes our verdict.

Verdict: Karen Verified

Karen Verified

The short answer: The Nisaku hori hori is the tool we would keep if we could only keep one. It digs, cuts, pries and measures, and after a year the blade is still straight and sharp.

Buy it if
Weeding tap roots, transplanting, dividing perennials, opening compost bags.
Skip it if
You want something safe for a child to use, or you only tend a few pots.
Best feature
Stiff stainless blade with a serrated edge and depth marks.
Biggest annoyance
The wooden handle dries out and the sheath is thin.
The catch
It is a knife. The tip is sharp enough to go through a hose or a boot if you are careless, and the sheath does not lock it in.
Evaluation
In use since September 2025
Model
Nisaku NJP650

The 20-second verdict

The one tool we reach for first The Nisaku hori hori is the tool we would keep if we could only keep one. It digs, cuts, pries and measures, and after a year the blade is still straight and sharp. Best for: Weeding tap roots, transplanting, dividing perennials, opening compost bags. Skip if: You want something safe for a child to use, or you only tend a few pots.

What we loved, and what annoyed us

What we loved

  • Stiff stainless blade that holds an edge
  • Serrated side saws through roots
  • Depth marks are genuinely useful
  • Comfortable handle for long sessions

What annoyed us

  • Wood handle needs oiling
  • Sheath is thin and does not lock
  • Very sharp tip for a garden tool

What We Loved

Weeding a bed of bindweed with this is a different job than with a trowel. The concave blade slides down beside a tap root, a twist pops it, and the serrated edge takes care of anything woody. Transplanting from pots, the depth marks on the blade replace guessing. It has opened compost bags, cut twine, levered out a paver and divided a hosta, all without complaint. The balance is right in the hand.

What Annoyed Us

The wooden handle went grey and slightly rough after a wet spring until we oiled it. The sheath is functional but the knife slides out if it is upside down on a belt. The tip is sharp enough to have gone into a drip line twice.

The Catch

It is a proper knife with a garden job. That makes it fast and versatile, and it also means you need to store it where a child will not find it and pay attention to where your other hand is.

Who it is for

  • Weeding tap-rooted weeds
  • Transplanting and dividing
  • Anyone who wants fewer tools

Who should skip it

  • Kids or casual pot gardeners
  • Anyone who wants a tool that lives loose in a bucket

How we evaluated it

Evaluation period
A full year, ongoing
Where
Clay-heavy suburban garden and community plot
What we did with it
Weeding, transplanting, dividing, cutting roots and twine, prying
Compared against
A previous no-name hori hori and a standard steel trowel
What we looked at
Edge retention, blade flex, handle comfort, rust
Limitations
Did not test the leather-sheath variants
Product source
Purchased at retail
Dates
September 2025 – ongoing

Read how we evaluate products and our editorial standards.

Performance

The blade does not flex when prying and the edge is still keen after a year of soil contact. The serrations are aggressive enough for roots as thick as a thumb. No rust so far with a rinse after use. The concave shape moves soil better than a flat blade and the pointed tip gets under stones.

Ease of use, design, and build quality

Ease of use

Nothing to learn beyond respecting the edge. The handle fills the hand and the blade shape makes both stab-and-lever and saw motions natural.

Design and build quality

A long stainless blade with one plain and one serrated edge, a plain wooden handle, and a nylon sheath. Traditional and unfussy.

Privacy and connectivity

No app, no account, nothing to connect.

Safety notes

This is a sharp fixed-blade knife. Keep it sheathed, store it out of reach of children, and mind your off hand.

Cleaning, maintenance, and ongoing costs

Rinse and dry after use, oil the handle a few times a year, touch up the edge with a stone when it starts to drag.

What it keeps costing you

Ongoing costs
ConsumablesNone
Expected lifeDecades

Value

You get a trowel, a weeder, a root saw and a measuring stick in one piece of steel that will outlast all of them. The trade is that it is sharper and heavier than any of those alone.

See today’s price on Amazon

Alternatives

If you want a bigger handle

Nisaku NJP801 Yamagatana has a rubberized ergonomic grip for people with larger hands or arthritis.

If you just need a trowel

Radius Garden 100 is lighter, gentler on wrists, and not a knife.

Also in Outdoor & Garden

Specifications

Specifications for Nisaku NJP650 Hori Hori Weeding Knife, 7.25-Inch
Brand / modelNisaku NJP650
Blade length7.25 inches (manufacturer states)
Blade materialStainless steel
HandleWood
EdgesOne plain, one serrated
Depth markingsInch and centimeter
SheathIncluded

Only specifications that affect the buying decision are listed. Figures marked “manufacturer states” are the maker's claims, not our measurements.

Warranty and returns

Manufacturer states a limited warranty; returns are set by the retailer.

Reader questions

Does it rust?
Not in a year of use with a rinse after wet work; stainless does not mean rust-proof, so dry it.
Which edge do I use for weeding?
The plain edge for slicing soil beside a root, the serrated edge for cutting through it.

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Final verdict

Verdict: Karen Verified

Karen Verified

Verified. The single most useful hand tool in our shed, and the one we would replace the same day if we lost it.

Best for
Weeding tap roots, transplanting, dividing perennials, opening compost bags.
Skip if
You want something safe for a child to use, or you only tend a few pots.
Main strength
Stiff stainless blade with a serrated edge and depth marks.
Main weakness
The wooden handle dries out and the sheath is thin.

As an Amazon Associate, Karen Verified earns from qualifying purchases. That never changes our verdict.

Update and correction history

  • Published.
    Why: Initial evaluation.
    Verdict unchanged

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KV

Karen Verified Editors

Karen Verified is written and edited by a small independent team that buys the products it covers, uses them at home, and publishes what it finds — including th…

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