1、GIFT FOR DADDY: 60 Pieces of deep hole carpenter pencil refills are a fun gift for dad on daily job; a great gift to express your sincere gratitude and love for dad who has it all for the holidays 2、ACCURATE AND PRACTICAL: This deep hole mechanical pencil refill is more sturdy, reliable and practical; the 2.8mm diameter can draw in holes that other oil pencils can not get into, so will be a good refill for your work 3、PREMIUM WATERPROOF MATERIAL: The black refill is made of graphite for added durability; the red and yellow refills are made of tinted wax, which is resistant to breakage and water resistance, and will not get your hands dirty while working 4、3 COLOR REPLACEMENT REFILLS: Yellow and red carpenter pencil refills make drawing on dark surfaces no longer a problem, you can choose according to the surface color where you are drawing; three colors can be applied to mark different meanings, making your sketches more legible 5、WIDE RANGE OF APPLICATIONS: Long nose marker refills can be used in scribing tools, woodworking pencils, air engravers, woodworking tools, dovetail knife engraving pens, engraving tools, quick cap, glass cutters, glass engraving, glass etching, glass scribing, hardened steel etchers, jewelers dividers, engraving supplies, center scribes, layout tools, pen scribes, scratch cones, scribing pens, sheet metal scribes, steel bars, welding markers for steel and welding pencils