Deep hole maker: The deep hole carpenter pencil features an extended point with a 45mm tip length, allowing access to hard-to-reach areas where other carpenter markers cannot reach, ideal for marking through holes or in tight spaces Built-in sharpener for precise marks: The sharpener is securely attached to the top of the mechanical pencil, preventing loss and ensuring the pencil remains sharp for accurate, clean lines Mechanical pencil: The carpenter pencil provides a secure grip to prevent slipping, reducing hand fatigue during repeated use; The pen clip design allows easy attachment to a pocket for convenient access and reduced risk of loss, enhancing efficiency on job sites, suitable for construction and masonry work Marks on various surfaces: The pencil performs well on multiple surfaces including metal, plastic, glass, wood, and paper; The lead is durable and leaves visible marks even on dark surfaces where standard pencils may fail