Deep-hole maker: the deep-hole welders pencil designed with extended and needle-nose tip of 45 mm in length, reaching hard-to-reach areas where other welders marker do not go, suitable for marking through holes or in other tight areas. Visible Sign: silver is suitable for marking darker steel, our silver round refills are less erasable than , and reflective markers make a distinct mark for welders and tube fitters on oily, rough, smooth, wet, dry, icy, rusted surfaces. Marks on various surfaces: the long nosed deep hole carpenter making tool can mark on wood, paper, rusty metals, which is suitable for woodworking, fabrication, tube, fitter, welder, steel and so on. Built-in sharpener for marks: the pencil sharpener is screwed into the top of the mechanical drawing pencils, which 't get lost either and your mechanical pencil be sharpened for . Package including: the silver welders markers are pre-filled with 1 refills, comes with 3 silver and 3 yellow refills in one boxes that can meet your metal marking needs for a long-term usage., Manufacturer: Mcnhbdgg