Deep Hole MarkerThe deep hole marker carpenter's pencil is equipped with an extended and needle tip of 32mm length, which reaches hard to reach areas where other carpenters can't reach, suitable for marking through holes or in other narrow areas, convenient to use. Portable Mechanical PencilThe mechanical carpenter's pencil is characterised by its portable clip design, the pen clip design can be easily attached to the bag, easy to use and not easy to lose, which increases efficiency.Long nose tip, gear design on the pen handle, which makes your work easier. Multifunctional marker pen: the solid Zimmermann pencil can be used on metal, plastic, glass, wood, paper, etc.; the drawing pencil is reliable, the fat can be tracked anywhere, deep hole marker pencil of 3 colours can distinguish brands with different meanings. This is suitable for carpenters, woodworking, production and so on. Waterproof Design:This long nib marker is waterproof, quick drying and can be used for various surfaces such as wood, metal, glass and plastic.The long head depth markers are quick drying, so you don't have to worry about the handwriting fading after writing, and the colour is not easy to fade, durable for a long time. Can be added to the ink design: after the ink is used up, available oil-based marker ink in the pen to add to the ink. Packaging: you will receive 3 drill hole markers in the colours red, blue, black, the nib line width is 1 mm.