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 streak round refills are less erasable than talc, and reflective markers make a distinct mark for welders and tube fitters on oily, rough, smooth, wet, dry, icy, rusted surfaces. Built-in sharpener for marks: the pencil sharpener is screwed into the top of the mechanical drawing pencils, which won't get lost either and your mechanical pencil will be sharpened for nice precision. 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. Package including: the silver streak 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. Colour: Blue Material: ABS Package Contents: 2 x Pen 2 box x Refills (3 silver and 3 yellow refills included in one box)