DIY 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.