Grog Driller 04 RSP Steel Tip Marker, 4mm

The Grog Driller 04 RSP is a 4mm steel-tip marker built for surfaces that destroy regular felt nibs. The spring-loaded stainless steel rollerball glides over rusty metal, raw concrete, brick, and chipped wood without fraying, splitting, or tearing—it literally drills past dust, dirt, and oil to lay paint directly onto the base surface.

Pre-filled with Grog's signature Real Street Paint, this marker delivers a thick, ultra-opaque, glossy coat that resists weather and UV. The soft squeezable body lets you control the flow with hand pressure—light for crisp 4mm lines, firmer for heavy, glossy drips.

When it runs dry, just refill it with Grog Buckshot 60 RSP or another high-viscosity paint. Built for street artists, industrial mark-makers, and drip enthusiasts who need durability on rough, abrasive surfaces.