Lyra-Ink Deep-Hole Marker Red 1 mm, LahtiPro

The Lyra-Ink deep-hole marker in red is a marker pen with a 1 mm line width, made for writing and marking inside drilled holes and on hard-to-reach surfaces. The product is supplied by LahtiPro.

The marker writes with permanent ink and has a hardness of 2B. It works in holes with a maximum depth of 35 mm and a maximum diameter of 4.5 mm.

Marking works very well on stone and concrete and well on dry wood, metal (not hot) and plastic. On ceramic tiles and glass it works adequately. The marking cannot be removed.