GRINDER 1B (2.5")

Human Grade Grinder 1B (2.5") - Aluminium Herb Grinder

The Human Grade Grinder 1B steps up from the compact 1A with a 2.5-inch diameter, giving you noticeably more grinding capacity without sacrificing portability. After testing both sizes back to back, the extra half-inch makes a real difference for heavier sessions or when grinding for multiple vaporizer loads at once. The diamond-cut teeth perform consistently across the larger chamber, and the grind texture comes out even throughout.

Human Grade built the 1B on the same principles as the rest of their lineup: anodised aluminium construction, clean threading, and a magnetic lid that closes securely. In practice, it feels robust and well-balanced in hand, with none of the wobble or loose-fitting lids that let down cheaper grinders at this price point.

Human Grade Grinder 1B Features

• Size: 2.5 inches (63mm) diameter
• Material: Anodised aluminium
• Teeth: Diamond-cut for a consistent, even grind
• 4-piece design: Grinding chamber, collection chamber, and kief catcher with fine mesh screen
• Magnetic lid: Keeps the top securely closed during use
• Smooth threading: Precision-cut threads prevent cross-threading and open cleanly every time

Specifications

Who Is This For?

The Grinder 1B suits regular users who find a 2-inch grinder just a little too small for their needs. The larger chamber handles bigger loads comfortably, making it a practical choice for home use alongside desktop vaporizers or for anyone who prefers to grind in bulk rather than refill frequently. It also works well as an everyday carry for those who do not mind the slightly larger footprint compared to the 1A.

1A vs 1B - Which Size Should You Choose?

The choice between the 1A and 1B comes down to how much you typically grind in one session. The 2-inch 1A is the more pocketable option and handles single-session loads with ease. The 2.5-inch 1B is the better pick if you use a vaporizer regularly at home or want to grind enough for several sessions at once. Both share the same build quality, teeth design, and kief catcher setup, so neither compromises on performance.

What's Included

• 1 x Human Grade Grinder 1B (2.5") in selected colour

This information is sourced from the manufacturer and our own experience using the product. Available at Herbalize Store with free UK delivery.

**For legal use only.