Dixon Reach Deep Hole Markers are designed to aid in the marking of hard to reach places such as drilled holes, tight corners, even for DIY art projects. This multi-purpose, permanent marker marks on most wet and dry surfaces. Industrial products have been a part of Dixon’s heritage since our start over 200 years ago as a graphite and mining company. Today, we use that experience to craft our Dixon branded precision marking tools, which are known for their durability and effectiveness. Dixon offers a wide range of tools that are perfect for any job.