Tattoo Machine Needle Compatibility Guide

Cartridge needles are self-contained units that snap into a compatible grip. They are the modern standard and are used by most rotary and pen-style machines.

Standard needles (or flats) require a traditional tube and rubber band setup. They are mainly used with coil machines.

Most machines sold today are cartridge-compatible. Always check the manufacturer's specs before ordering needles.

The two main cartridge standards are Cheyenne Hawk and standard cartridge. Cheyenne uses a proprietary plunger system, while standard cartridges use a membrane or rubber band to push the needle.

Many machines support both, but some only work with one type. FK Irons, Bishop, and most Chinese-made pens use standard cartridges. Cheyenne Sol Nova uses Cheyenne cartridges.

Round Liners (RL): Grouped in a tight circle for lines and outlines. Sizes: 1RL, 3RL, 5RL, 7RL, 9RL, 14RL.

Round Shaders (RS): Grouped in a loose circle for shading and soft color. Sizes: 3RS, 5RS, 7RS, 9RS.

Magnums (M1, M2, Curved): Flat or curved rows for shading and color packing. Sizes: 5M1, 7M1, 9M1, 11M1, 13M1, 15M1.

Choose your needle based on the technique, not just the machine. A good machine handles all groupings within its stroke range.

Needle not extending far enough: The grip depth or stroke length may be wrong for that cartridge type.

Needle wobbling: The cartridge may be loose in the grip. Try a different brand or check the grip for wear.

Inconsistent ink flow: Some cartridges have better membranes than others. Cheap cartridges often have poor ink retention.