Full Set Carpenter Marking Tools: this marking kit include 2 pieces deep hole carpenter pencil and 2 pieces mechanical carpenter pencils with 36 pcs marker refills(4 boxes and 3 colors), 1 piece automatic center punch tool and 1 piece carbide scribe tool; Multiple tools can meet your different marking needs in working Built in Sharpener Carpenter Pencils: the woodworking pencils come with a built in sharpener screwed into the top of each pencil for convenience; There are totally 4 solid carpenter pencils, 2 of which are deep hole carpenter pencils; 45 mm deep hole extended and needle nose tip design make construction pencils can fit into small holes and deeper recesses to mark drill holes well Spring Loaded Center Punch: the metal punch is made of chrome plated steel body and deeply knurled surface, which means that it will not slip and offers more precise handling and control; The adjustable tension screw allows you to use one hand to operate with little effort, which can easily and accurately mark a centering spot for drilling holes Precise Metal Carbide Scribe: this etching engraving pen has a reliable tungsten carbide tip and knurled aluminum body, providing more control and comfort; The metal scribe comes with a protective vinyl cap over the scribe tip while not using, to prevent the tip from damaging other things Widely Use: Hiboom mechanical pencil set come with Handy pen style design with convenient pocket clip; 36pcs black red and yellow refills can meet your marking needs for a long term and wide apply for metal wood glass ceramics paper and more; This carpenter tools set is suitable for machinist architect carpentry working