GROG - Driller 04 RSP Steelball Marker

The Grog Driller 04 RSP Steelball Marker is a durable all-conditions marker designed for rough, uneven, and demanding surfaces. Developed as the modern evolution of the legendary Grog Metal Head, the Driller 04 RSP combines a flexible squeezer-style body with an extremely resistant 4 mm steel ball tip and high-coverage Ruff Stuff Paint.

The marker is made for surfaces where conventional felt or plastic tips quickly fail. Whether used on raw concrete, rusty metal, greasy shutters, or dusty, wet, and textured surfaces, the scratch-resistant steel ball tip supports controlled marking under difficult conditions.

Its soft squeezer body allows the user to regulate the paint flow directly through pressure. This makes it possible to adapt the output to the surface, working style, and desired result. The Grog Driller 04 RSP is ideal for users looking for a tough marker with bold paint delivery and high versatility.

Evolution of the legendary Metal Head
The Grog Driller 04 RSP builds on the proven concept of the well-known Metal Head while introducing a more functional design. The new squeezer body provides improved control over paint flow and allows the output to be adjusted more directly. Applying light or stronger pressure to the marker body determines how much paint is delivered to the steel ball tip. This supports both controlled lines and heavier, more saturated markings.

Its compact construction feels comfortable in the hand and is suitable for spontaneous use, longer applications, and mobile work.

Wear-resistant 4 mm steel ball tip
The central feature of the marker is its 4 mm steel ball tip. Unlike conventional marker nibs, the application element consists of a robust metal ball.

The tip is:

• highly wear-resistant
• scratch-resistant
• durable on rough surfaces
• suitable for hard and textured materials
• longer-lasting than many traditional felt tips

While soft nibs may fray or become damaged quickly on concrete, metal edges, and heavily textured surfaces, the steel ball is designed specifically for these conditions.

The rolling ball distributes the paint as the marker moves, creating a bold and characteristic application.

High-coverage Ruff Stuff Paint
The Grog Driller 04 RSP is filled with the updated Ruff Stuff Paint. This thick, adhesive paint was developed for challenging surfaces.

The paint offers:

• high coverage
• thick, rich consistency
• strong adhesion
• high visibility
• dependable application on difficult materials

The formula adheres to many surfaces where thinner marker paints may provide insufficient results. Its viscous consistency remains clearly visible on the surface and creates strong, high-contrast markings.

Designed for difficult and rough surfaces
The marker is especially suitable for materials that present a challenge to conventional markers.
These include:

• raw and textured concrete
• rusty metal
• painted or greasy shutters
• dusty surfaces
• damp materials
• rough walls
• industrial metal surfaces
• uneven and heavily worn materials

Actual adhesion and coverage may vary depending on the surface, moisture, contamination, and material structure. For the best possible result, remove loose dirt whenever possible.

Controlled paint flow through the squeezer body
The flexible squeezer body enables direct control over paint flow. Pressing the marker body sends additional paint toward the steel ball tip.

Light pressure creates a more controlled output, while stronger pressure produces a heavier and more saturated application. This allows the marker to adapt to different surfaces and desired effects. Before use, shake the marker thoroughly to distribute the paint evenly and activate the tip carefully.

Easy to refill
The marker can be refilled quickly with Grog Buckshot 60 RSP. This allows the body to be reused instead of replacing the entire marker once empty. Its refillable construction reduces material waste and makes the Driller 04 RSP especially practical for regular users.

For optimal performance, use only a compatible refill paint recommended by the manufacturer.

Product details

• Product: Grog Driller 04 RSP Steelball Marker
• Marker type: all-conditions squeezer marker
• Tip: 4 mm steel ball
• Tip material: steel
• Paint: Grog Ruff Stuff Paint
• Consistency: thick and adhesive
• Flow control: regulated by pressure on the squeezer body
• Refillable: yes
• Recommended refill: Grog Buckshot 60 RSP
• Manufacturer: Grog