FK Irons Flux Max Tattoo Machine with 1 PowerBolt 2.0 — 4.0mm Stealth

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SKU 00803-00-ST-4.0
Weight 0.500000
Brand FK Irons

Supersize your tattooing potential with the state-of-the-art wireless Flux Max wireless machine.

Product Highlights:

Extended Stroke Length Options, including 3.2mm, 4.0mm, and 4.5mm for power lining, which is the longest stroke length FK Irons has ever offered.

Intuitive and User-Friendly with the PowerBolt II battery pack, upgraded with from the original PowerBolt to feature crisp OLD digital display. The Bluetooth-enabled PowerBolt II offers 10+ hours of ultra-smooth tattooing power.

Adjustable Give using the PowerBolt II battery pack without having to connect to the darklab app

Maximum Comfort + Control with 0.1 increment voltage adjustments, an upgraded ergonomic grip, and forward-weighted design

Technical Specifications:

  • Weight: 205g
  • Stroke Length: 4.0mm
  • Equipped with 1 PowerBolt II battery pack
  • Machine body made from 6061 T6 aluminum
  • Voltage Range: 4v–12v
  • 10+ hours of battery life on PowerBolt II battery


FK Irons Flux Max Machine Manual

Size Table

Standard Body Jewelry Measurements

The following webchart is a quick reference guide for standard body jewelry measurements and how to measure basic body jewelry. Please print this webchart to help measure your body jewelry accurately.

Size Reference Chart

Visit our PainfulPleasures Infocenter for additional body jewelry information. There, you will find detailed articles on standard body jewelry sizes, how to measure body jewelry, basic body jewelry, and more.

Standard Body Jewelry Threading

Ensure compatibility between standard (non-custom) PainfulPleasures body jewelry parts using the tables below. More information on threading, including custom thread patterns, can be found in our Threading Infocenter article.

Internally threaded jewelry has a threaded post on the top and/or end, which is then inserted into a threaded hole in the barbell shaft.

Internal Thread Patterns by Gauge


18g, 16g

14g, 12g


Internal Thread Pattern

0.8mm or 0.9mm



Externally threaded jewelry has a threaded post on the barbell shaft, which is then inserted into a threaded hole in the top and/or end.

External Thread Patterns by Gauge


18g, 16g

14g, 12g, 10g

External Thread Pattern



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