Quality MaterialsThese pens are made of PP shell and carbon steel nib, robust and wear-resistant; Its pen body is long, and the nib is thin and round, easy for you to handle.Long Nib MarkerThe deep-hole carpenter pen designed with extended and needle-nose tip of 30 mm in length, reaching hard-to-reach areas where other carpenter marker do not go, suitable for marking through holes or in other tight areas.Waterproof & Quick-DryingThe carpenter marker pen is different from other pens in the market. It is water-proof, smudge-proof and quick-drying, not easy to fade. And it can write on aluminium, sheet metal, concrete, stone, iron, steel, glass, wood, plastics etc.Package IncludesYou will get 6 pieces of multi-purpose deep hole pens in 3 various colors, red, blue and black and two of each colorSufficient quantity can woodworking marking needs for a long time and replacements, and you can share them with your colleagues and friends.Widely UsedThe solid carpenter pencil can draw on metal, plastic, glass, wood, paper, etc. The pencil is durable, which is grease to trace everywhere. This long nib deep hole pens are suitable for home decoration, hardware processing, automobile manufacturing, industrial processing and more.