19847 Mechanical Carpenter Pencil with Built-in Sharpener Comes with 3 Colors 6 Refills (Red/Black/Yellow)

Durable: Carpenter pencils are designed to withstand the rigors of construction work, often featuring sturdy leads and strong casings.
Marking precision: They typically have finer lead points than regular pencils, allowing for more precise marking on wood and other materials.
Visibility: Carpenter pencils often come in bold colors like red or yellow for better visibility on wood surfaces.
Built-in Sharpeners:

Convenience: Eliminates the need for a separate sharpener, which can be helpful on the job site.
Sharpening quality: The quality of built-in sharpeners can vary, with some producing less precise sharpening than dedicated sharpeners.
Durability: Consider the construction material of the built-in sharpener to ensure it can withstand regular use.