Drill set, containing 6 drills (one of each size). Non-cutting tip to prevent damage. 7, 9, and 11 mm laser marks to identify the depth. Color-coding enhances instrument management. Matches the sizes of posts. ParaPost X-System Drills are double-fluted cylindrical instruments guaranteeing maximum cutting action and are built with a blunt end that prevents perforations. These color-coded drills have been calibrated according to the depth of the preparation and correspond with ParaPosts to achieve an ideal thickness of the cement film.Available in a range of sizes and colors. This pack contains 6 x drills (one of each size: # 3, # 4, # 4.5, # 5, # 5.5, and # 6).