Grog Cutter 08 BMI. 8mm Stealth Ink Marker

The Grog Cutter 08 BMI is the definitive stealth ink marker, designed for tactical operations where discretion is paramount. This graffiti marker is a valve marker with a durable plastic body, equipped with an 8mm Quickflow polyester chisel tip. Its distinguishing technical feature is the ink it's loaded with: an invisible ink that allows you to leave a transparent mark, destined to reveal itself only later. The flow control, managed by the valve system, and the precision of the tip make it the perfect tool for creating clean handstyle and and subtle, under-the-radar writing.

The heart of this ink marker is its special ink, the iconic Black Magic Ink. It is a UV reactive ink, an alcohol-based dye formula that is completely transparent upon application. Its "magic" is activated by exposure to sunlight: the ink undergoes a chemical reaction that slowly darkens it, until it reaches a deep and permanent dark brown-black hue. This process makes the Cutter 08 BMI a strategic stealth ink marker, allowing one to operate without being noticed. The entire line is available in the Grog BMI Black Magic Ink collection.

The permanence of the Grog Cutter 08 BMI is guaranteed by its high-penetration formula. The ink doesn't just cover the surface; it binds deep within the material, especially on porous substrates, making the tag extremely difficult to remove. Its construction is built to last: it is a refillable ink marker, and its replacement tip allows for maintaining peak performance at all times. For technical data on development times and compatibility, you can consult the official Grog Cutter 08 BMI product page.

How does the ink in the Grog Cutter 08 BMI work?
The ink in the Grog Cutter 08 BMI is a UV-reactive dye formula. It is transparent upon application, but once exposed to sunlight, a chemical process is activated that darkens it, revealing a permanent brown-black tag.

What product should I use to change the tip on the Grog Cutter 08 BMI?
To replace the tip on your Grog Cutter 08 BMI, you must use the Grog Quickflow 08 EPT replacement tip. It is designed to maintain a consistent ink flow and ensure precise lines.

Why is the Grog Cutter 08 BMI an effective invisible tag marker?
The Grog Cutter 08 BMI is an effective invisible tag marker because it allows you to write without leaving immediate visible traces. The tag appears only hours later with light exposure, making it a perfect tool for stealth actions.

What do I refill the Grog Cutter 08 BMI with?
The Grog Cutter 08 BMI must be refilled exclusively with its Grog Black Magic Ink 70 refill. Using this specific refill is crucial to preserve its unique properties as an invisible ink.