The MarXman Standard & Deep Professional Marking Tool Counter Display Unit. 
 
With one push, it quickly, easily and clearly marks almost any surface. For jobs with fixing holes up to depths of 50mm with the standard or 50 -100mm with the deep. Each pen contains 250 bursts of removable, fluorescent green pigment and is capable of marking all surfaces including brick, metal, wood, pebbledash, porcelain and ceramic. The perfect drilling companion for electrical, plumbing, building jobs and much more.