Engineered for precisely marking, this 2.8mm woodworking pencil refills features 12cm long that effortlessly reaches narrow cavities in woodworking and engineering project. Each box contains 6pieces extended length automatic pencil refills, delivering durability of standard refills for uninterrupted technical drawing. Suitable for professional engineers, architects, and craft enthusiasts requiring millimeter accuracy in detailed woodworking marking applications. Widely used for cabinetry joinery, mechanical blueprinting, woodworking drafting, and scale model drawing where traditional wood pencils cannot access confined spaces. The elongated refills tip maintains clearly visibility in drilling setups while fit most 2.8mm woodworking pencils mechanical drafting pencils.