420 Science 4-Piece Grinder

74 reviews
$ 39.99
$ 39.99 $ 39.99

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A 420 Science Grinder!

Unlike some other herb grinders, each layer is one solid piece of aerospace aluminum. The large chamber allows for up to 2.5 grams of herbs to be ground. This designer grinder uses diamond-cut teeth to crush your herbs into a nicely blended and fluffed texture, keeping your fingers clean and your bowls evenly distributed. Hands down the best grinder you'll find at this price.

SPECS:

  • Magnetic seal top
  • CNC machined from solid aluminum
  • Four layers: top, blade plate, grounds chamber, kief chamber
  • Stainless steel micron screen and pollen scraper included
  • Diameter: 2.5in
Customer Reviews
4.7 Based on 74 Reviews
5 ★
86% 
64
4 ★
7% 
5
3 ★
4% 
3
2 ★
0% 
0
1 ★
3% 
2
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Filter Reviews:
JP
03/13/2024
Jay P.
United States

Outstanding Quality

Very well machined and works perfectly. This is my second one. The other one got lost.

TL
12/06/2022
Thomas L.
United States United States

a spectacular assembly that never dissatisfies

This grinder is so much better than the rosewood nail grinder I have used for years. I thought I would treat myself and I am glad I did! This grinder makes my old one look like the stone age. It has three separate chambers and it is rugged and expertly designed. Well done 420 science!

CM
11/17/2022
Cory M.
United States United States

Works as expected.

Great so far. Works as expected.

RS
04/01/2022
Rick S.
United States United States

420 science grinder

Everything I expected and more. Fine quality. Does the job ! Well done!