https://www.jpcorry.com/jp-corry-products/acer-deep-pencil-marker-site-holster-(blister-pa/
ACER Deep Pencil Marker & Site Holster (blister pack) - ADP2
Description
Introducing the Acer deep hole pencil. The perfect choice for professionals and DIY enthusiasts alike. Thanks to it's unique 120mm retractable, interchangeable leads, the Acer deep hole pencil can mark through beams & joists with ease. Includes site holster.