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Product details

Apex Cartridges - Hollow Liner (HL) Tattoo Needles

Give your outlines a stronger presence with APEX Hollow Round Liner Tattoo Cartridges. Designed for artists who enjoy bold, defined linework, the hollow grouping arranges the needles around an open centre, offering a different feel from a conventional tightly packed round liner.

Whether you are building traditional outlines, shaping lettering or adding structure to an illustrative piece, APEX HRL cartridges give you a dedicated hollow liner option for your setup.

Available in 7, 8 and 10 Hollow Round Liner configurations, each using 0.35mm needles. Supplied in boxes of 20 individually packed cartridges.

Key Features

Hollow round liner grouping

Needles arranged around an open centre for artists who prefer a hollow liner configuration.

0.35mm needle diameter

All three sizes use #12 gauge needles.

Stainless steel needles

Made with stainless steel needle points for professional tattooing.

Safety membrane

An integrated membrane helps prevent ink and fluid backflow towards the machine.

Cheyenne-style fitting

Compatible with machines and grips that accept standard Cheyenne-style cartridges.

Individually packed

EO-gas sterilised and individually blister packed for single use.

What Is a Hollow Round Liner?

An open-centre arrangement

HRL stands for Hollow Round Liner. The hollow refers to the space at the centre of the needle grouping, not to the individual needle points.

A different lining option

The arrangement offers an alternative to a conventional round liner when choosing the feel and character of your outlines.

Choosing your line weight

Needle count alone does not determine the finished line width. Grouping, taper, machine setup and technique all influence the result.

Available Sizes

1207HRL

7 Hollow Round Liner – 0.35mm.

1208HRL

8 Hollow Round Liner – 0.35mm.

1210HRL

10 Hollow Round Liner – 0.35mm.

Each box contains one selected configuration.

Creative Applications

Traditional outlines

Consider hollow liners when planning prominent outlines that give a design its structure.

Illustrative linework

Build contrast between stronger outer contours and finer internal details.

Lettering and graphic designs

An option for artists exploring confident borders and heavier line weights.

Select your configuration and settings to suit the artwork, placement and your working technique.

Specifications

Brand

APEX

Configuration

Hollow Round Liner – HRL

Available Sizes

1207HRL, 1208HRL and 1210HRL

Needle Diameter

#12 / 0.35mm

Needle Material

Stainless steel

Safety Membrane

Yes

Sterilisation

EO gas

Packaging

Individual blister packs

Quantity

20 cartridges per box

Handling & Storage

Check before opening

Inspect the wrapper and expiry date before use. Do not use a cartridge if the packaging is open or damaged.

Single use only

Use a fresh cartridge for each client and session. Never clean or reuse a used cartridge.

Safe disposal

Dispose of used cartridges in an approved sharps container according to your studio’s waste procedures.

Keep unused cartridges protected

Store in their original packaging in a clean, dry place, following the instructions on the box.

Package Includes

1 x box of 20 APEX Hollow Round Liner Tattoo Cartridges in your selected size.

Frequently Asked Questions

What does HRL mean?

HRL means Hollow Round Liner, describing a circular needle grouping with an open centre.

Does a hollow liner leave a hollow line?

No. The name describes the needle arrangement, not an intended gap in the finished line.

How do I choose between 7, 8 and 10 HRL?

Choose according to your preferred grouping and the line weight you want to create. Test your setup on practice skin when getting familiar with a new configuration.

Can I buy a mixed box?

This listing supplies 20 cartridges of one selected size per box.

Explore More Tattoo Cartridges

Looking for a conventional liner? Explore our APEX Round Liner Cartridges, or browse the full Tattoo Needle Cartridges collection for more configurations.

Delivery & collection

Royal Mail delivery is available across the UK and internationally. Delivery options and prices are shown at checkout. Free UK delivery on orders of £70 or more.

Same-day dispatch for orders placed before 4pm Monday to Friday and before 10am on Saturday.

Collection is available in Bedford by prior arrangement. Please contact info@apextattoo.co.uk before placing a collection order.

Returns & support

Unopened boxes can be returned within 31 days. Please contact info@apextattoo.co.uk first for return instructions.

Customers pay return postage for change-of-mind returns. For a faulty or incorrect item, contact us so we can help.

Need help choosing a configuration or with an order? Email our team at info@apextattoo.co.uk.

FIND YOUR CONFIGURATION.

Four core configurations.
Built for every style.

QUESTIONS? WE’RE HERE.

Get the answers you need or reach out to our team.

CARTRIDGE FAQs

Which configuration should I choose?

Explore Round Liners, Round Shaders, Round Magnums and M1 Magnums, then choose the gauge and grouping that suit your approach. If you need help finding a size, contact us below.

What do the gauge numbers mean?

Gauge refers to the diameter of each individual needle: #06 is 0.20 mm, #08 is 0.25 mm, #10 is 0.30 mm and #12 is 0.35 mm. Grouping refers to the number and arrangement of needles.

Can I mix configurations in my order?

Yes. You can mix RL, RS, RM and M1 boxes in the same order. Choose each size and add it to your cart.

Where do you deliver?

We offer UK and international delivery through Royal Mail. Available services and prices appear at checkout. UK orders of £70 or more qualify for free delivery.