Guides

Know before you machine

Straight answers on materials, branding methods, logo prep, pricing and timelines — from the people who machine the grinders.

Case study

Eight years, one finish: the Jacana rose gold grinder

Jacana has been ordering custom grinders from GMI for over eight years. They've tried other finishes — and keep coming back to rose gold.

Read guide

Buyer guide

What to Ask Before You Order 500 Custom Grinders

You need 500 custom grinders for a product launch, a dispensary chain, or a merch drop. Every supplier you talk to quotes a different minimum, a different timeline, and a different price per unit. Here's exactly how wholesale custom grinders actually work — the tiers, the hidden traps, and what you should expect from a manufacturer.

Read guide

Premium Herb Grinders

CNC-machined, aircraft-grade aluminium — the spec sheet

Custom Grind

Your logo, your design, machined into metal

3D Printed vs CNC

Honest comparison — when each method wins

Unique Grinders

A different engraving for every person

DIY Herb Grinder

Design your own grinder online

Best Custom Grinder

Six criteria that separate the best from the rest

Custom Grinder No Minimum

Order one, test, then scale to 1,000+

Wholesale Herb Grinders

Bulk pricing without the bulk commitment

Bulk Rolling Trays

Your logo laser-burned into hardwood

Bulk Dab Tools

Your logo moulded on stainless steel

Bulk Joint Tubes

Silk-screened tubes, sold in tens

UK Custom Grinders

Custom grinders shipped to the UK

Bulk Branded Grinders

No minimum, from $6.75/unit

Personalized Grinders

Logo, name or photo — your choice

Client Reviews

What 10,000+ clients say

Pain Points

What brands actually struggle with

About GMI

Our story, our numbers, our guarantee

Market Statistics

Cannabis industry data 2026