Understanding the difference between RS (Round Shader) and RL (Round Liner) tattoo needles is essential for both aspiring and professional tattoo artists. The choice of needle configuration directly impacts line precision, shading smoothness, and overall tattoo quality. This detailed guide explains the differences, uses, pros, and cons of RS and RL needles while also highlighting innovations like the Mast SMP MAX Tattoo Cartridges designed for modern tattooing needs.

Table of Contents
Why Tattoo Needle Types Matter
Each tattoo needle type serves a unique purpose. Using the wrong needle configuration can result in uneven lines, poor shading, or even skin trauma. Artists who master needle selection can:
- Improve the precision of their designs
- Ensure smoother shading and gradients
- Reduce client discomfort
- Deliver professional-quality tattoos consistently
What is an RL Tattoo Needle?
RL (Round Liner) needles are tightly grouped in a circular formation, designed specifically for creating crisp, defined lines.
Common Uses:
- Outlining tattoos
- Fine line work
- Lettering and script designs
Advantages:
- Precision: Creates sharp and clean outlines
- Control: Excellent for detailed line work
- Variety: Comes in multiple sizes (e.g., 3RL, 5RL, 9RL)
Limitations:
- Not ideal for shading large areas
- Requires steady hands to prevent ink blowouts
What is an RS Tattoo Needle?
RS (Round Shader) needles are grouped in a circular pattern but spread out more than liners. They are designed for shading and coloring.
Common Uses:
- Shading gradients
- Filling in color
- Soft black-and-grey tattoos
Advantages:
- Smoother shading: Perfect for blending tones
- Versatility: Can be used for small color packing
- Efficiency: Covers more surface area than RL
Limitations:
- Not suitable for crisp outlines
- Can cause uneven shading if used incorrectly
Key Differences Between RS and RL
- Purpose: RL for lines, RS for shading
- Needle grouping: RL is tightly packed, RS is looser
- Precision: RL is more accurate, RS is more blended
- Skin contact: RL punctures deeper, RS is softer
When to Use RS vs RL
Professional tattoo artists often combine both types in a single tattoo:
- Use RL for outlining and lettering
- Switch to RS for shading and filling color
- For portraits, both RL (details) and RS (shadows) are essential
Spotlight: Mast SMP MAX Tattoo Cartridges
The Mast SMP MAX Tattoo Cartridges are a premium choice for professionals who value consistency and innovation.
- Optimized for SMP Design: Consistent skin puncture depth
- Holder Management: Easy disassembly and reassembly
- Artistic Input: Developed with MAST family artists
- Durability: Long-lasting needle filament
- Innovation: Continuous improvements from user feedback
Available Configurations:
- 0401RL = 0.18MM 1RL
- 0403RL = 0.18MM 3RL
- 0601RL = 0.20MM 1RL
- 0603RL = 0.20MM 3RL
- 0801RL = 0.25MM 1RL
- 0803RL = 0.25MM 3RL
- 1001RL = 0.30MM 1RL
- 1003RL = 0.30MM 3RL
- 1201RL = 0.35MM 1RL
Summary Table
Needle Type | Best For | Advantages | Limitations |
---|---|---|---|
RL (Round Liner) | Outlining & Lettering | Sharp lines, high precision, control | Not for shading, risk of blowouts |
RS (Round Shader) | Shading & Color Packing | Smoother shading, covers larger areas | Not for crisp outlines |
FAQs
1. Can RS needles be used for lining?
While possible, RS needles won’t create the crisp lines that RL needles provide.
2. Which needle is better for beginners?
Beginners often start with RL needles for outlines since they are easier to control.
3. Do professionals use both RS and RL?
Yes, most professional tattoos combine RL for outlines and RS for shading.
4. How do I choose needle size?
Smaller sizes (3RL) are best for fine lines, while larger RS needles are for shading.
5. Are Mast SMP MAX cartridges only for SMP?
No, they are versatile and can be used for multiple tattoo styles requiring RL precision.