About GMI Custom Grinders
We are a CNC manufacturer — not a reseller. Every grinder is machined from raw aluminium billet in our own facility, shipped to dispensaries, brands, artists and promotional companies worldwide.
What we do
We CNC-machine custom herb grinders, rolling trays, dab tools, joint tubes and accessories — all branded with your logo. Unlike most suppliers who import stock grinders and print on top, we cut every body from solid aircraft-grade aluminium, anodize it in eight colours, and engrave your mark in 3D metal, laser or full-colour UV.
How we work
No minimum order. One unit or one thousand get the same machining, the same finishes, the same care. Every order starts with a free digital proof, and production runs 10-20 business days after approval. Free rush shipping on every order.
By the numbers
2014
CNC machining since
10,000+
Clients served
70%
Reorder rate
98.2%
On-time delivery
Notable clients
Run The Jewels, Native Roots, Ari Shaffir, High Focus, Jacana, Penrose Records — dispensaries, record labels, comedians, cannabis brands and promotional companies across the US, UK, Canada, Australia and beyond.
Quality guarantee
If the grinding teeth are not diamond-cut, the screen is not high-micron stainless steel, or the anodizing does not hold through years of pocket wear — we will make it right. Every grinder is inspected before it ships.