Mark through deep planks or other hard-to-reach spots onto stone, brick and multiple materialsDIY enthusiasts will appreciate the high quality, flexibility and effectiveness of the Bosch deep hole marker pencil. The pencil has a removable cap, so as well as readily marking flat surfaces, once the cap is taken off, it reaches easily into deep holes for flexible marking. A superior graphite lead core means this pencil can be used to mark multiple materials including stone, concrete, brick, wood and paper. The pencil is always pointed and read for use thanks to an integrated sharpener. This pencil can be depended on again and again for many years thanks to its robust composition and stainless-steel tube. Removable cap for flexible application as a deep-hole marker Precise marking of small-bore, deep holes for DIY carpentry or drilling Long lifetime thanks to robust housing and stainless-steel tube composition Graphite lead core for marking paper, wood, stone and multiple materials Handy built-in sharpener for pointed lead and precise marking