Versatile - Our deep hole marker can be used perfectly as a marker pen on all common surfaces such as wood, metal, stone, concrete, tiles, brick or glass. Replaceable high quality 2.8mm graphite lead HB ensures exact clearly visible marking.Robust and ergonomic - The housing made of durable ABS plastic guarantees a long service life of our mechanical pencil. The handle on the deep hole marker is ergonomically shaped and thus allows for very comfortable drawing and writing. The perfect craftsman's pencil!Especially practical - no more blunt leads, thanks to the integrated sharpener in the screw cap, it is always with you. With the belt clip, the mechanical pencil can also be easily attached to the trousers or shirt. So the marker is always at hand whether on the construction site or at home.Durable technology: the reliable pressure mechanism in our borehole marker ensures an even lead feed. In addition, the mechanism on the marker pen is resistant to pressure, so even stronger lines can be easily marked on the construction site. The better carpenter's pencilShatter-proof shaft - Thanks to the 45 mm long stainless steel shaft, our drill hole marker allows precise marking of drill holes during assembly work, as well as marking hard-to-reach areas. In addition, the graphite lead can be stowed away in the shaft. A must for every carpenter's pencil was yesterday! A pen for all occasions.With our deep hole marker, you can easily mark drill holes with a depth of up to 45 mm. With fully extended lead even up to 13 cm deep.Thanks to the ergonomic handle, you can write comfortably with the mechanical pencil or make precise drawings.The deep hole marker is perfect for all common surfaces such as wood, stone, metal, concrete, tiles, brick, glass, plastic and more.No more annoying and inaccurate sharpening with the knife, thanks to the integrated sharpener in the screw cap of the marker, you always have it at hand.