Tracer ADP2 120mm Deep Hole Construction Pencil With Site Holster The Tracer ADP2 Deep Hole Construction Pencil with Site Holster is the perfect tool for carpenters, joiners, kitchen fitters and DIY enthusiasts alike. Thanks to its unique 120mm retractable and interchangeable leads, the Tracer deep hole pencil can mark through beams & joists with ease. FEATURES Shirt / trouser clip Mark 100mm depth in a 3mm hole Mark 145mm depth in a 6mm hole  Long, sturdy metal shaft Ideal for marking ceramics, wood, plastic and metal Always to hand with site holster for your pocket Inbuilt sharpener in site holster for maximum precision Replaceable 120mm long pencil leads - choose 2B graphite leads for clear, dark lines, and yellow wax leads for darker surfaces Ergonomic, comfortable finger grip SPECIFICATION Lead Length: 120 mm