Industrial-strength Gravity-Fed Lead Holders are designed for the toughest job sites for marking rough surfaces. Its triangular barrel and textured grip are specially designed so it's easy to use while wearing gloves and features a clip for quick and easy access storage on your tool belt, along with using a clutch mechanism at the top of the pencil to advance the lead.
The extra thick 5.6-mm lead boldly marks paper, lumber, and other rough surfaces.