Package Included: 8-pack mechanical carpenter pencils with 48 pcs 2.8 mm replacement refills, red and black color combination, black pen: black writing has high contrast on dark wood surface and is easy to identify; It can be applied for preliminary cutting lines, rough positioning, and emphasis on marking joints or load-bearing parts that need special attention; The red color is eye-catching and can be applied for warning marks, temporary corrections, and soft wood markings Practical Design: deep hole pencil: the carpenter pencil has a 45 mm long extended nose, which allows you to work in hard-to-reach areas, suitable for marking deep holes or other narrow areas, and the metal tip is strong enough for long-term use [Portable clip design]: our deep hole construction pencil adopts a portable clip design, becoming a convenient tool to carry with you Comfortable and Ergonomic Grip: the mechanical construction pencil is designed with a comfortable grip, which is comfortable to hold; The grooves on the body of the pencil provide friction and reduce pain, allowing you to work for long periods of time without discomfort; Our working pencils are the good tool for professionals and carpenters such as bricklayers and tilers, allowing you to focus on your work without feeling any stress; Ideal for marking cuts, sketching and rendering Built-in Sharpener: our construction pencils come with a built-in sharpener, which ensures that the tip of the automatic pencil is always sharp and ready to use; No need to buy an extra pencil sharpener again; This is a good tool for any carpenter pencil, contractor pencil; Just a click of the pencil mechanism can easily extend or retract the lead, allowing you to work more efficiently and accurately Widely Applicable: the deep hole mechanical pencil can draw on metal, plastic, glass, wood, paper, etc. It can be used for marking