The pencil requires 2.8mm refills, the pencil and pocket holder design easy for to carry and use; the sharpener on top of the deep hole woodworking pencil will help you keep your pencil always useful. The metal marker pen uses a tungsten carbide tip that can mark on hard materials such as hardened steel, stainless steel, ceramics and glass, a necessary machining tool that can provide . You can use this practical pen and woodworking pencil to write on metal, stainless steel, glass, ceramics, marble, wood, etc. They can be easily marked on surfaces and can also be used to mark your keys, metal items, etc., suitable for , builders and painters. Different color refills are provided to choose when marking; a good fathers, friends and DIY enthusiasts to express your sincere wishes and happiness. The set includes 2 carpenter pencils, built-in sharpener and 12 refills, 3 long nose deep hole markers and 2 tungsten carbide scribers, this set can satisfy you where you want it Labeling and long-term use requirements. Colour:As Shown Material:Metal Package Contents: 1set * construction marker Tools Only the above package content, other products are not included. Note: Light reflection 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.