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Home / Office Equipment, Supplies & Services / 3D Printer Accessories MK8 Heat Break PTFE Tube Feeding Makerbot MK8 Stainless Steel Heat Break M6

Attributes

Brand -
Category Root / Office Equipment, Supplies & Services
Origin -
Material Stainless Steel
Thread Type M6 Full Thread
Total Length 30mm
Inner Diameter 2.0mm (PTFE Lined)
Compatibility MK8 Extruder Hotends
Surface Finish Polished
Heat Resistance Up to 260°C
Package Contents 5 x Heat Breaks
Weight per Unit 4.5g
Application FDM 3D Printing

6 reviews

A

Anonymous

Mar 30, 2026

Rating: 4/5

Good quality, slightly tight tolerance

The stainless steel feels very durable. They were a bit tight going into the heater block at first, but after a heat cycle, they seated perfectly. No leaks so far.

A

Anonymous

Mar 28, 2026

Rating: 5/5

Perfect fit for my Ender 3 upgrade

These heat breaks are exactly what I needed. The threading is precise, and they installed without any cross-threading issues. My prints have been much more consistent since swapping out the old brass ones.

A

Anonymous

Mar 27, 2026

Rating: 5/5

Easy to install for beginners

I was worried about installing these myself, but the instructions included in the seller's message were clear. They fit my Makerbot-style clone perfectly. Highly recommend for upgrades.

A

Anonymous

Mar 25, 2026

Rating: 5/5

Solved my clogging issues

I was experiencing frequent clogs with my previous setup. These full-thread heat breaks provide better thermal isolation, and I haven't had a single jam in two weeks of heavy printing.

A

Anonymous

Mar 15, 2026

Rating: 5/5

Great value pack

Getting five in a pack is great because these are small parts that are easy to lose or damage during assembly. The quality is consistent across all units in the box.

A

Anonymous

Mar 03, 2026

Rating: 4/5

Solid construction

The machining looks clean under a loupe. The PTFE tube insertion depth is standard. Only giving 4 stars because shipping took a little longer than expected, but the product itself is top-notch.

5 FAQ

Q: Do I need to apply thermal paste during installation?

A: While not strictly mandatory, applying a small amount of high-temperature thermal paste to the threads can improve heat transfer and prevent seizing in the future.

Q: Can these be used with abrasive filaments like Carbon Fiber?

A: Since the heat break itself is stainless steel, it resists abrasion well. However, please ensure your nozzle is also hardened steel if printing abrasive materials to prevent wear on the tip.

Q: What is the maximum temperature these can withstand continuously?

A: These stainless steel heat breaks are designed to operate continuously at temperatures up to 260°C, which covers PLA, PETG, and ABS filaments.

Q: Are these compatible with the Creality Ender 3 V2 stock hotend?

A: Yes, these M6x30mm full-thread heat breaks are fully compatible with the Ender 3 V2 stock hotend and most MK8 style extruders.

Q: Is the inner hole pre-lined with PTFE or is it bare metal?

A: The upper section of the inner bore is lined with a PTFE tube guide to ensure smooth filament feeding, while the lower section is bare metal for the melt zone.

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