Upgrade your marking tools with our 6-pack of long head deep hole marker pens. Made of high-quality materials, these long nib marker comes with a sturdy PP shell and a carbon steel nib, which is durable and wear-resistant. The extended pen body and slim round nib make it easy to operate. The 30mm extended pointed tip allows for marking in hard-to-reach areas, perfect for through holes or narrow spaces. This long nose marker is waterproof, smudge-proof, quick-drying, and suitable for a variety of surfaces such as metal, wood, glass, and plastic. Each pack contains 6 multi-purpose pens in red, blue, and black, enough to meet woodworking marking needs. Share with colleagues and friends. Long nib marker for metal is perfect for home decoration, hardware processing, automotive manufacturing, industrial processing, etc.