A short brow stroke has to read as a separate hair before it has much room to curve. Start with Pinky Pro 0601RL (1R, 0.20 mm) for short strokes with narrow gaps. Choose Pinky Ultra 1R (0.25 mm) when the design leaves room for a slightly more substantial mark and needle strength matters to your setup.
Compare the 10-cartridge versions at the same scale
| Selection factor | Pinky Pro 0601RL | Pinky Ultra 1R |
|---|---|---|
| Point count | One | One |
| Needle diameter | 0.20 mm | 0.25 mm |
| Construction | EO-sterilised 304 stainless steel | EO-sterilised 304 stainless steel, Ultra hardness and toughness |
| Cartridge housing and barrier | Clear PC body and silicone anti-backflow membrane | Clear PC body and silicone anti-backflow membrane |
| Connection | Standard universal | Standard universal |
| First choice for | Narrow gaps in a short arc | A slightly fuller single mark with sufficient open space |
The diameter changes the size of the wire within the same single-point format. That makes this a closer comparison than changing from one point to three. With 0601RL, the useful feature is the compact working point when two short hairs come close to each other. With the Ultra, the purchase case is its combination of a fuller single point and the highest needle hardness and toughness in ATTO's range. That is a material benefit when you want those characteristics in the working point and your drawing can carry the fuller mark.
Make the choice at the tightest part of the arc
A beginner's side-by-side exercise often gives both points enough open room, which can make the choices look identical. Start with a sketch that has a genuinely narrow turn. Let the two neighbouring strokes meet the same visual direction without touching, then leave a larger gap as they straighten out. Use one patch of silicone and copy the layout next to itself. Start the first row with 0601RL and the other with the Ultra 1R. Keep your pen and target shape the same. Look at where the turn closes visually when you step back, and compare whether the thicker wire gives you the weight you intended on the open part of the drawing. That is a useful reason to move to Ultra when the narrow turn still reads clearly.
The clear PC body lets you see the cartridge assembly during setup. The silicone membrane provides a barrier toward the handpiece. The needles are EO-sterilised 304 stainless steel. Those construction features come with both formats, so the final purchase can turn on the geometry and material grade that matter to the design. Buy the single box that matches the work now, then add the other if you encounter a second recurring layout.
What changes between the two single points?
Both cartridges have one needle and a standard universal connection. The Pinky Pro uses a 0.20 mm needle, the finer point of this pair. That makes it the natural first choice for a set of short starts and turns where you want each stroke to stay visually separate. Pinky Ultra uses a 0.25 mm needle and has the highest needle hardness and toughness in ATTO’s cartridge range. It makes sense when your layout can carry the fuller single-point mark and those material properties matter to you.
Wire diameter describes the needle. The mark you see also depends on how you work, so compare both points on the same synthetic surface before committing to a box you plan to use regularly.
Check the gap at the turn
Copy the same small brow arc twice on A4 silicone. Give each row a few short strokes that turn in the same direction, with a narrow gap where the curves approach. View both rows at arm’s length. Choose 0601RL when it helps the turn stay clear of the next stroke. If the 0.25 mm row holds the same separation and has the body you want, choose the Ultra. Pay special attention to the middle of the arc, where neighboring strokes come closest.
Frequently asked questions
Is the Ultra 1R a grouped liner?
It is a single point. Pinky Ultra also offers a separate 3RL option with three points grouped as a liner.
Does the Ultra box include the finger sleeve?
Yes. The 0.25 mm 1R option includes ten cartridges and a finger sleeve. Pinky Pro 0601RL is also available in a dedicated ten-pack with a sleeve.
Which box should I order for tight arcs?
Start with Pinky Pro 0601RL, 10 cartridges and add one A4 silicone practice sheet for the spacing check. Choose Pinky Ultra 1R / 0.25 mm, 10 cartridges with a sleeve when you want the fuller single-point option.
Will the same pen fit both of these cartridges?
Both use the standard universal connection. Use the same compatible pen for the practice comparison so the point diameter is the change you can see.