This exceptional patented device, the D-tube, allows you, the dentist, to attain both precision and safety through a unique and ergonomic design. Every segment contains only one single length of integral stopper drills (8mm, 10mm, 11.5mm and 13mm) eliminating the risk of mistake. Simply open the length size segment you need and follow the drill protocol by diameter. Furthermore, in every segment you will find an integral measurement gage to ensure the correct drill length – adding an additional safety feature. The D-tube base is designed to serve as a holder for drills and other needed surgical tools while the top cover can be used to hold used drills during surgery.