Human Grade 2A
$12.75 USDPrice checked September 30, 2026
2.5″ aluminum 4-piece with pollen screen and scraper.
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Herb Grinder
Original price was: USD $25.04.USD $10.70Current price is: USD $10.70.
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Herb Grinder
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Herb Grinder
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Herb Grinder
Original price was: USD $11.99.USD $7.99Current price is: USD $7.99.
Herb Grinder
USD $29.99
Herb Grinder
USD $39.99
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Herb Grinder
Herb Grinder
USD $39.99
Herb Grinder
USD $39.99
Herb Grinder
USD $21.46
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Herb Grinder
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Herb Grinder
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Herb Grinder
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Herb Grinder
Original price was: USD $65.00.USD $44.50Current price is: USD $44.50.
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Herb Grinder
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Herb Grinder
Buying guide · Prices updated September 30, 2026
Weed Grinders: The Best Herb Grinders and How to Choose One
A good weed grinder breaks flower into an even grind, so it burns or vaporizes evenly and nothing goes to waste. Below are the herb grinders we recommend, from inexpensive aluminum 4-piece grinders to CNC-milled, artist and vaporizer-specific picks, with live USD prices, plus how to choose, use and clean one.
City Vaporizer has sold vaporizers and accessories since 2012. Our picks are based on the product specifications of every grinder we carry.
Key takeaways
- A 2.5-inch aluminum 4-piece is the best all-round grinder for most people.
- 4-piece grinders catch kief with a mesh screen and a bottom chamber.
- CNC-milled aluminum means sharper teeth and a smoother twist for longer.
- Vaporizer users want a consistent, medium grind, not powder.
Who should buy what
- First grinder: Human Grade 2A or the 4-piece 55mm Aluminum.
- Better machining: BIGFUN! Large.
- Arizer owners: Arizer Herb Mill.
- Pocket or travel: Human Grade 3A or the Piranha 3-Piece Acrylic.
- Something different: NWTN mortar and pestle or a Pulsar art grinder.
Quick Picks: Best Weed Grinders
Short on time? These are our top choices by category. Every price is live in USD.
4-piece 55mm Aluminum
$10.70 USDPrice checked September 30, 2026
A classic aluminum 4-piece that handles everyday grinding well.
BIGFUN! Large
$22.95 USDPrice checked September 30, 2026
CNC-milled 6061 aluminum with diamond-shaped teeth.
Arizer Herb Mill
$44.95 USDPrice checked September 30, 2026
Arizer’s own threadless, magnetic grinder with storage.
Pulsar Pollinator
$39.99 USDPrice checked September 30, 2026
Artist designs, magnetic lid and pollen chamber.
BIGFUN! Medium 2pc
$16.15 USDPrice checked September 30, 2026
Fewest parts, magnetic closure, sharp diamond teeth.
NWTN Mortar & Pestle
$44.50 USDPrice checked September 30, 2026
Aluminum and walnut, no teeth, magnetic closure.
Piranha 3-Piece Acrylic
$7.99 USDPrice checked September 30, 2026
Magnetic lid and storage for very little money.
Herb Grinder Comparison Table
Specifications come from each product page. The live product pages are always the source of truth if anything changes.
| Grinder | Price (USD) | Material | Size | Pieces | Kief screen | Extras |
|---|---|---|---|---|---|---|
| Human Grade 2A | $12.75 | Aluminum | 2.5″ (63mm) | 4 | Yes | Scraping tool |
| 4-piece 55mm Aluminum | $10.70 | Aluminum | 2.2″ (55mm) | 4 | Yes | — |
| BIGFUN! Large | $22.95 | 6061 aluminum, CNC | 2.5″ | — | Mesh screen | Diamond teeth |
| BIGFUN! XL | $27.20 | 6061 aluminum, CNC | 3″ | — | Mesh screen | Diamond teeth |
| BIGFUN! Small | $18.70 | 6061 aluminum, CNC | 2″ | — | Mesh screen | Diamond teeth |
| BIGFUN! Medium 2pc | $16.15 | 6061 aluminum, CNC | 2.2″ (56mm) | 2 | No | Magnetic |
| Pulsar Pollinator | $39.99 | Metal | 2.5″ | 4 | Yes | Magnetic lid, scraper |
| Piranha 2.5″ 4-Piece | $29.99 | Anodized aluminum | 2.5″ | 4 | Yes | Magnetic lid, pollen pick |
| Arizer Herb Mill | $44.95 | 6063 aluminum | — | 3 | No | Threadless, magnetic, storage |
| NWTN Mortar & Pestle | $44.50 | Aluminum + walnut | 2″ (50mm) | Toothless | No | Magnetic |
| Human Grade Storage 1A | $11.05 | Aluminum + clear chamber | 2.5″ (63mm) | 4 | Yes | Storage, scraper |
| Human Grade 3A | $9.35 | Aluminum | 2″ (50mm) | 4 | Yes | Scraping tool |
| Human Grade 1C | $9.35 | Aluminum | 2.5″ (63mm) | 2 | — | Scraping tool |
| Piranha 3-Piece Acrylic | $7.99 | Acrylic | 2.4″ | 3 | No | Magnetic lid, storage |
— means the spec is not listed on the product page.
The Best Herb Grinders, Reviewed
01
Best Value 4-Piece Grinder · Best Under $15
Human Grade Grinder 2A (2.5″ 4-Piece)
$12.75 USDPrice checked September 30, 2026
Best for: Most people who want a proper 4-piece grinder with a kief catcher without spending much
Aluminum2.5″ (63mm)4-piecePollen screenScraping tool included
If you want one grinder that does everything, start here. The Human Grade 2A is a full-size 2.5-inch aluminum grinder with four pieces: the lid, the teeth chamber, a collection chamber with a pollen screen and a kief catcher at the bottom.
Its rugged, concave body is shaped for grip, and a scraping tool is included so you can collect the kief that builds up in the bottom chamber. The Human Grade line comes in several finishes at a similar price, so you can pick the look you like.
Pros
- Full 4-piece design with kief catcher
- Comfortable concave grip
- Scraping tool included
Keep in mind
- No magnetic lid
02
Customer-Reviewed & Great All-Around · Best Under $15
4-piece 55mm Aluminum Grinder
$10.70 USDPrice checked September 30, 2026
Best for: A simple, classic aluminum grinder that just works
Aluminum55mm (about 2.2″)4-piecePollen screen
This is one of the few grinders with customer reviews on our site, and a straightforward 55mm aluminum 4-piece: grind in the top, sift through the pollen screen, and collect kief in the bottom chamber.
The slightly smaller 55mm size is easy to hold in one hand and still big enough for everyday sessions.
Pros
- Customer-reviewed on our site
- Classic 4-piece with pollen screen
- Easy one-hand size
Keep in mind
- Basic finish and no extras
03
Best CNC-Milled Aluminum Grinder Under $25
BIGFUN! Large Grinder
$22.95 USDPrice checked September 30, 2026
Best for: People who want sharper teeth and a better-machined grinder for a little more
6061 aluminum2.5″CNC milledDiamond-shaped teethMesh screenAnodized finish
BIGFUN grinders are CNC milled from 6061 aluminum with diamond-shaped teeth and an anodized finish. The machining is what separates a grinder that twists smoothly for years from one that starts to bind.
The Large is the 2.5-inch size, a good match for most people. The same design comes in Small (2″), Medium (2.2″) and XL (3″), plus a 2-piece Medium.
Pros
- CNC-milled 6061 aluminum
- Sharp diamond-shaped teeth
- Four sizes in the same line
Keep in mind
- Costs more than the basic aluminum grinders
04
Best Art Grinder Under $40
Pulsar 2.5″ 4-Piece Pollinator – MrOw
$39.99 USDPrice checked September 30, 2026
Best for: A grinder that works well and looks good on the table
2.5″4-pieceMagnetic lidSifting screenPollen chamberScraper included
Pulsar’s Pollinator line pairs a 2.5-inch 4-piece grinder with artist designs. It has a magnetic lid, a sifting screen, a pollen chamber and a scraping tool, plus textured, sure-grip edges.
The MrOw design is one of several Pulsar Pollinator artworks we carry, including the Psychedelic Snake and Psychedelic Whale.
Pros
- Eye-catching artist designs
- Magnetic lid
- Pollen chamber and scraper
Keep in mind
- You pay extra for the artwork
05
Best Magnetic-Lid Grinder Under $30
Piranha 2.5″ 4-Piece Grinder
$29.99 USDPrice checked September 30, 2026
Best for: A full-size anodized grinder with a magnetic lid and pollen pick
Anodized aluminum2.5″4-pieceMagnetic lidSifting screenPollen pick
The Piranha 2.5-inch is an anodized aluminum 4-piece grinder with a magnetic lid, so the top stays put in your bag. A sifting screen separates the kief into the pollen chamber, and a pollen pick is included to get it out.
Sure-grip, textured edges make it easy to twist, even when it is full.
Pros
- Magnetic lid stays closed
- Pollen pick included
- Textured grip
Keep in mind
- Plainer look than the Pulsar art grinders
Best for: Arizer vaporizer owners who want a matching grinder from the same brand
6063 aluminum3-pieceThreadlessMagnetic closureStorage chamber
Made by Arizer, the company behind the Solo and Air vaporizers, the Herb Mill is built for vaporizing. Arizer describes sharp, customized teeth and an optimized hole pattern designed for a consistent, medium grind, which is what most dry herb vaporizers want.
It is threadless, closes magnetically and has a storage chamber, and the lightweight, corrosion-resistant aluminum body is built to last.
Pros
- Designed for vaporizer-friendly grind
- Threadless magnetic design
- Storage chamber
Keep in mind
- No kief catcher
- Premium price for a 3-piece
Best for: People who want a different, gentler way to break up flower
Aluminum + black walnut2″ (50mm)ToothlessMagnetic closureAnodized pestle
The NWTN Home is not a typical grinder. Instead of teeth, it uses a solid anodized aluminum pestle to press and break up flower, with a magnetic closure and a black walnut sleeve that makes it look at home on a shelf.
It is a good pick if you prefer a hands-on, toothless approach, or you want a grinder that doubles as a nice-looking piece.
Pros
- Toothless mortar-and-pestle design
- Walnut and aluminum build
- Magnetic closure
Keep in mind
- Different technique than a twist grinder
Best for: Quick, simple grinding with the fewest parts
6061 aluminum2.2″ (56mm)2-pieceMagnetic closureDiamond teeth
A 2-piece grinder is just a lid and a base with teeth, so there is nothing to sift and nothing to lose. The BIGFUN Medium 2pc is CNC milled from 6061 aluminum with sharp diamond teeth and a magnetic closure.
It is the fastest way to grind and load, though you give up the kief catcher of a 4-piece.
Pros
- Fewest parts, easiest to clean
- Magnetic closure
- CNC-milled teeth
Keep in mind
- No kief catcher or storage
09
Best Grinder With Storage
Human Grade Storage Grinder 1A (2.5″)
$11.05 USDPrice checked September 30, 2026
Best for: Grinding and storing flower in one piece
Aluminum + clear chamber2.5″ (63mm)4-pieceStoragePollen screenScraping tool
The Storage Grinder 1A adds a clear storage chamber to a 2.5-inch 4-piece aluminum grinder, so you can see how much is left and keep ground flower ready to go.
It still has a pollen screen and includes a scraping tool for the kief chamber.
Pros
- Built-in clear storage
- Pollen screen and scraper
Keep in mind
- Taller than a standard 4-piece
10
Best Budget Grinder Under $10
Piranha 2.4″ 3-Piece Acrylic Grinder
$7.99 USDPrice checked September 30, 2026
Best for: A spare, travel or first grinder that costs very little
Acrylic2.4″3-pieceMagnetic lidStorage compartment
Acrylic grinders are the lowest-cost option, and the Piranha 3-piece is a good one: sharp teeth, a magnetic lid and a storage compartment underneath.
Acrylic is lighter and less durable than aluminum, so it makes a great spare or travel grinder rather than a lifetime one.
Pros
- Very low price
- Magnetic lid
- Storage compartment
Keep in mind
- Acrylic wears faster than aluminum
- No kief screen
Best for: Grinding bigger batches at once
6061 aluminum3″CNC milledDiamond teethMesh screen
The XL is the 3-inch version of the BIGFUN grinder: CNC-milled 6061 aluminum, diamond-shaped teeth and a mesh screen, with more room for larger amounts of flower.
If you grind for a group or prep ahead, a 3-inch grinder saves a lot of twisting.
Pros
- Big capacity
- CNC-milled teeth
Keep in mind
- Too big for a pocket
12
Best Small Grinder Under $10
Human Grade Grinder 3A (2″ 4-Piece)
$9.35 USDPrice checked September 30, 2026
Best for: A pocket-size 4-piece for travel or single sessions
Aluminum2″ (50mm)4-piecePollen screenTextured grips
At 2 inches, the Human Grade 3A is small enough for a pocket but still a full 4-piece grinder with a pollen screen and kief catcher. Its concave shape with textured grips makes it easy to twist.
A scraping tool is included, and the Human Grade 1A offers the same 2-inch size in a classic design.
Pros
- Pocket-size 4-piece
- Textured grips
- Scraping tool included
Keep in mind
- Smaller capacity
2-Piece vs 3-Piece vs 4-Piece Grinders
| Type | How it works | Good for | Example (live price) |
|---|---|---|---|
| 2-piece | Lid and base with teeth; scoop flower out of the teeth | Speed, simplicity, easy cleaning | BIGFUN! Medium 2pc ($16.15) |
| 3-piece | Adds a chamber below the teeth to collect ground flower | Grinding and holding flower | Piranha 3-Piece Acrylic ($7.99) |
| 4-piece | Adds a mesh screen and a bottom kief catcher | Most people; collects kief | Human Grade 2A ($12.75) |
| Toothless | Presses or rolls flower apart instead of cutting it | A gentler, hands-on grind | NWTN Mortar & Pestle ($44.50) |
What Size Grinder Should You Get?
2″ (50mm)Pocket-size for travel and single sessions. Example: Human Grade 3A.
2.2″–2.5″ (55–63mm)The everyday standard and our default recommendation. Example: Human Grade 2A.
3″For larger batches at home. Example: BIGFUN! XL.
Aluminum vs Acrylic Grinders
Aluminum is the standard for a reason: it is strong, light, holds a sharp edge and usually comes with a kief screen. CNC-milled aluminum, like BIGFUN’s 6061 grinders, is machined more precisely for a smoother twist.
Acrylic grinders cost the least and weigh almost nothing, which makes them great spares or travel grinders, but the teeth and threads wear faster than metal.
Toothless and wood accents: the NWTN combines an aluminum pestle with a black walnut sleeve for a different look and feel.
The Best Grind for Dry Herb Vaporizers
Most dry herb vaporizers work best with a consistent, medium grind. Too fine, and small particles can slip through screens and restrict airflow; too coarse, and the herb heats unevenly. A sharp 4-piece grinder gives you that even grind, and if you own an Arizer, the Arizer Herb Mill is the brand’s own grinder.
Using an Arizer? See our Arizer Vaporizer Store. Looking for a new vaporizer? Browse portable vaporizers.
How to Use a Weed Grinder
1. Break it upPull flower into small pieces and remove any stems.
2. Load the teethPlace pieces between the teeth, not on the center pin.
3. TwistClose the lid and twist 10 to 15 times.
4. TapTap the grinder so ground flower drops into the chamber.
5. CollectOpen the chamber and pour or scoop out your grind.
6. Save the kiefOn a 4-piece, use the scraper to collect kief from the bottom chamber.
How to Clean a Grinder
- Freeze it: put a metal grinder in the freezer for 10 to 15 minutes so resin hardens.
- Brush it: brush the teeth, threads and screen to knock residue loose.
- Soak metal parts in isopropyl alcohol for a deep clean, then rinse with warm water.
- Acrylic: use warm soapy water instead of alcohol.
- Dry completely before putting it back together.
Weed Grinder FAQ
What is the best weed grinder?
For most people, a 2.5-inch aluminum 4-piece grinder is the best all-round choice: it grinds evenly, sifts kief and lasts for years. Our best-value pick is the Human Grade 2A. The 4-piece 55mm Aluminum is a great all-around, customer-reviewed option, the BIGFUN! Large has sharper CNC-milled teeth, and Arizer fans can pick the Arizer Herb Mill.
What is the best herb grinder for a dry herb vaporizer?
Look for a grinder that gives a consistent, medium grind. Any quality aluminum 4-piece, like the Human Grade 2A or the 4-piece 55mm Aluminum, works well, and Arizer owners can choose the Arizer Herb Mill from the same brand; just avoid grinding so fine that small particles pass through your vaporizer’s screens.
What is the difference between a 2-piece, 3-piece and 4-piece grinder?
A 2-piece grinder is a lid and a base with teeth, and you scoop the flower out of the teeth. A 3-piece adds a collection chamber below the teeth. A 4-piece adds a mesh screen and a bottom chamber that catches kief (pollen). The 4-piece is the most popular design.
What size grinder should I get?
2 inches is pocket-size and good for single sessions. 2.2 to 2.5 inches is the everyday standard. 3 inches is for grinding larger batches at home. If you are unsure, choose 2.5 inches.
Is an aluminum or acrylic grinder better?
Aluminum is more durable, has sharper teeth and usually includes a kief screen, so it is the better long-term choice. Acrylic grinders cost less and weigh less, which makes them good spares or travel grinders.
What is kief and how does a grinder collect it?
Kief is the fine, resin-rich powder from the flower’s trichomes. In a 4-piece grinder, ground flower sits on a mesh screen and kief sifts through into the bottom chamber, where you can collect it with the included scraper or pollen pick.
How do you use a weed grinder?
Break the flower into small pieces and place them between the teeth, away from the center pin. Close the lid and twist 10 to 15 times, then tap the grinder and open the chamber to collect your ground flower. On a 4-piece, keep the grinder upright so kief falls through the screen.
How do you clean a grinder?
Put a metal grinder in the freezer for 10 to 15 minutes to harden sticky resin, then brush the teeth and screen. For a deep clean, soak aluminum pieces in isopropyl alcohol, rinse with warm water and let them dry completely. Clean acrylic grinders with warm soapy water instead of alcohol.
Why is my grinder hard to turn?
Resin buildup in the threads and teeth is the usual cause. Clean it using the freezer-and-brush method above. Overfilling the grinder or packing flower on the center pin can also make it stick.
Are electric grinders better than manual grinders?
Electric grinders save effort if you grind large amounts or have limited hand strength. Manual grinders are simpler, quieter, more portable and let you control how fine the grind is. Our range is manual grinders, including the toothless NWTN mortar and pestle.
How long does a grinder last?
A good aluminum grinder can last for years with regular cleaning. Acrylic grinders wear faster. Replace a grinder when the teeth stop cutting cleanly, the screen tears or the lid no longer turns smoothly after cleaning.
How much does a good grinder cost?
Quality aluminum 4-piece grinders like the Human Grade 2A ($12.75) and the 4-piece 55mm Aluminum ($10.70) are inexpensive. CNC-milled grinders like the BIGFUN! Large ($22.95) cost a little more, and specialty grinders like the Arizer Herb Mill ($44.95) cost the most. Prices on this page are live USD prices.
Where can I buy a weed grinder near me?
Instead of searching local shops, you can order online from City Vaporizer. We have sold vaporizers and accessories since 2012, carry grinders from Human Grade, BIGFUN!, Pulsar, Piranha, Arizer and NWTN, and every price on this page is a live USD price.
Find Your Grinder
Not sure where to start? The Human Grade 2A is our best-value 4-piece, the BIGFUN! Large is the upgrade in machining, and the 4-piece 55mm Aluminum is a great all-around grinder with customer reviews on our site.
