Deep-hole maker: the deep-hole carpenter pencil designed with extended and needle-nose tip of 45 mm in length, reaching hard-to-reach areas where other carpenter marker do not go, suitable Compatible With marking through holes or in other tight areasBuilt-in sharpener Compatible With precise marks: the pencil sharpener is screwed into the top of the mechanical drawing pencils, which wont get lost either and your mecanical pencil will always be sharpened Compatible With nice precisionMechanical pencil: the carpenters pencil do not slip out of the fingers and repetitive tracings cause less pain; The pen clip design can be easily attached to the pocket, easy to use and not easy to lose, gaining in efficiency, proper Compatible With construction and bricklayersMarks on various surfaces: the solid carpenter pencil can draw on metal, plastic, glass, wood, paper, etc; The drafting pencil lead are durable, which are grease to trace everywhere and stronger than hard lead; Yellow can be drawed on dark surfaces where grey lead do not drawRefillable Compatible With continued use: the woodworking marker is pre-filled with a grey lead, comes with 5 refill boxs included 6 red leads,6 yellow leads and 18 grey leads that can meet your woodworking marking needs Compatible With a long-term.size: 14.5cmMaterial:ABScolour:Black+red+yellowPackage Contents:4 x marker pens with built-in refills10 x refill box (Per box 6 red leads,6 yellow leads and 18 grey leads)Only the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.