1. Deep Hole Drawing: Deep hole mechanical pencils are designed with a fine point tip to reach depths that other traditional pencils cannot access, allowing you to draw precisely in holes and other narrow areas. 2. Built-in Pencil Sharpener: This woodworking marker comes with a sharpener at the end of the pencil, providing a quick and easy way to keep the pencil sharp and precise for easy access at any time. 3. Multiple Versatility: Mechanical markers can not only draw on wood, but also can be used on metal, concrete, tile, cement, paper, etc., suitable for carpenters, architects and designers; suitable color can be selected according to the color of the drawing. 4. Practical and Portable: The solid mechanical pencil is user-friendly, with a larger diameter, which improves the grip and is not easy to slip out of your fingers; With the pen clip design, our carpenter drawing pencil can be easily hung in your pocket, easy to carry and not easy to lose. 5. Package Contents: Woodworking pencil set contains 1 woodworking mechanical pencil or 3 pencils in 3 colors, Black, Yellow and Red, 6 Refills per Box, sufficient quantity and different colors to give you more choices and meet your diverse woodworking marking needs for a long time. Note: Please allow a little error on the size due to manual measurement.