Adult Source

Flower Mill: 3.5" Mill Plate #4 (Coarse)

Flower Mill: 3.5" Mill Plate #4 (Coarse) - Main image
$34.97 $49.95 In stock

Category: Grinders

The mill has a removable, food grade (304) stainless steel mill plate, which allows them to be swapped out to customize the size of the processed material.

Key Upgrades

More Rigid

The new 3.5” Pro Mill Plates are now significantly thicker to process faster and resist bending.

Faster Fine Processing 

To reduce material sticking in the smaller holes, both the #1 Fine and #2 Extra Fine plates have CNC chamfered bottoms.

Locking Mechanism

The new Pro Mill Plates use a keyed notch to keep them in place under the most demanding conditions.


Plate lineup includes:
#1 Extra Fine (new with chamfered bottoms)
#2 Fine (new with chamfered bottoms)
#3 Medium (included in the mill)
#4 Coarse
#5 Extra Coarse
#6 Coarse XL (new larger holes)

Note: The center rods are non-removable.

A final check before payment

Review your options, quantities and the final total before confirming.

Ordering for an occasion

Delivery times are estimates, so leave time before your occasion.

Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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If plans change

Ask the store about your order before making return or refund arrangements.

Please contact us for the refund processing timeframe before returning an item.

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Planning delivery

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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Return arrangements

Contact the store first to check the conditions for your item.

United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.4 / 5 · 5 reviews)

Julian ★★★★★

Finally got around to swapping the plate and the coarse grind on this #4 is perfect for my vaporizer—consistent, no dust. The stainless steel feels much sturdier than the plastic mills I’ve used.

Hannah A. ★★★★★

The 304 stainless steel plate feels solid and well-machined, not flimsy at all. Gives me a nice, consistent coarse grind that’s perfect for my vaporizer.

Natalie ★★★★★

Swapped in the #4 plate and the coarse output is perfect for my dry herb vape—even and fluffy without any powder. The 304 stainless steel feels solid and was a breeze to pop out and rinse clean, so switching back to a finer plate takes seconds.