Four Piece Stainless Steel Grinder 1.75"

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The World's First Stainless Steel No-Bind Grinder 

Our best-selling Four-Piece Stainless Steel grinder was developed specifically for medical patients who have health concerns using aluminum products as well as trouble with grinders binding up. This mini but mighty grinder features our Patent Pending labyrinth seal design, and utilizes design methods and technology used across aerospace and renewable energy technologies. It is fully constructed out of 100% food-grade stainless steel, and guaranteed to perform and last a lifetime. The weight and feel of this grinder is durable. Only a few turns will create the perfect consistent grind without binding up. Sharp diamond-shaped teeth will cut and grind your material with ease minus the excessive wrist strain. Our 1.75” grinder is ideal for those who enjoy smaller doses, plus the convenience of taking your medicine on the go! This grinder is truly a game changer for those who want to enjoy an elevated grinding experience.  

What is a Kief Catcher and how does it work?


Our 4-Piece grinder features a sift screen and collection chamber on the bottom to collect those potent trichomes that fall off during the grinding process. We use ultra fine stainless steel mess to allow trichomes to pass through, while it filters out unwanted leaf or plant material. You can sprinkle these trichomes on top of a bowl, in a joint, or use it in cooking and baking your favorite meals and treats! The bottom chamber may double as a stash container for ready-to-go grinded flower. Elevate your experience by upgrading your grinder to a 4-Piece! 


  • 1.75” in diameter - the perfect travel-size!
  • Constructed out of 100% Medical Grade Stainless Steel
  • Sharp diamond-shaped teeth and deep cutting area
  • Smooth & seamless grinding experience 
  • Knurled lid for exceptional grip and comfort 
  • Removable Stainless Steel Sift Screens (available in fine and medium micron)
  • Heavy Duty Magnetic Lid
  • Sleek Stainless Steel Finish 
  • Specially-designed curved bottom chamber for easy material/kief gathering
  • Dishwasher Safe + Easy to clean
  • Gift Packaging Available- Comes packaged in a Vermont-Made novelty wood puzzle box
  • Limited Lifetime Warranty
  • 100% Money Back Guarantee

► Looking for a larger grinder with a deeper grinding chamber? Consider our Four Piece Stainless Steel Grinder 2.5" !


1.75 (in)
1.50 (in)
1.75 (in)

29 Reviews

  • 4
    This one works fantastic. I meant to get the wider one, but this one works absolutely great.

    Published by Na'eem on Jan 10th 2021

    Hope you guys get many blessings coming your way.

  • 3

    Published by Anne on Dec 16th 2020

    I love what it does but it is so small you have to re load it to many times and the lid is so thin I can't grip it to use it. It hurts to use it. You need to make it easier for old people with arthritis to turn the lid.

  • 5
    1.75 Grinder

    Published by Bob on Nov 28th 2020

    Very solid, excellent grinder. Extremely well made. Works exceedingly well. The 1.75 is a little bit small for my arthritic hands, so I bought the 2”, which is perfect. Someone’s getting the 1.75 for Christmas. BTW IASO is a great company. Great customer service!

  • 5
    Solid construction. Grinds smoothly. Perfect size for me.

    Published by Roy Hitzeman on Nov 6th 2020

    Great product. No issues with sticking. Seems like it will last me a lifetime.

  • 5
    Perfect grinder for bowls

    Published by Paul on Sep 24th 2020

    This is ‘the’ Grinder to own if you are smoking bowls, it grinds the perfect amount every time. The grinder is unmatched in quality, and can easily handle hash chunks. Overall this grinder is a keepsake that will easily last a lifetime. Pair this with a storage container for an eye stopping kit everywhere you go.

  • 5
    Four piece 1.75”

    Published by Cody beiersdorf on Aug 17th 2020

    Item works wonderfully and better than expected :) unfortunate that it doesn’t come in the magnetic box as advertised in every review I read before purchase and instead comes in a poorly constructed wooden puzzle box

  • 4
    Fantastic grinder, but get the bigger size!

    Published by Jenna on Aug 17th 2020

    I really love this grinder, but the 1.75" size is VERY small. For such a small grinder, it holds a ton of herb (I can get 2 handrolls out of one full chamber). I love the design and the way the top just glides! My only issue with the functionality of the piece is with the keef catcher at the bottom. It tends to twist off on its own, I wish it had a stronger magnet keeping it screwed in.

  • 5
    Steel grinder

    Published by Jed Snow on Jun 30th 2020

    The grinder is the best one I’ve ever had. It is a High precision product. The least amount of effort I’ve been required to grind herbs, and the best part is it doesn’t bind up at all. Long story short it’s worth spending more on this product than a $20 grinder. The cheap-o’s will start binding up after a few uses. I’ve used this new grinder about 100 times and it is a smooth as day one. Zero binding

  • 5
    Supreme Satisfaction

    Published by Richard on Jun 15th 2020

    From the purchasing experience to having this wonderful piece of machinery in hand, I have been blown away by the quality IASO and their product. Customer service was very responsive when shipping was delayed and I have never been dissatisfied using this grinder. The precision of the machining and weight of the grinder make for an excellent experience. Highly recommend this product for anyone looking to upgrade their herbal milling experience.

  • 5
    Awesome little tool!!

    Published by Jane Jervis on May 17th 2020

    This little grinder is such high quality I was amazed. After using it, I was more amazed. This works so well I don't know what I did before I had it. Superior product.

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