The DIATECH Inlay/Onlay Preparation Kit comes with 5 different diamond burs with FG-shanks and a stand. The DIATECH Diamond instruments have a uniform coverage of diamond on different levels. New diamond grits will be exposed as the outer layer wears. The Topspin design diamond provides cool, rapid gross reduction producing a distinct chamfer margin. The coarse, round diamond is used for lingual/ palatinal reduction. The occlusal reduction barrel diamond is used to reduce the occlusal of posterior restorations. The coarse cylinder will give you a 1.5mm deep chamfer margin ideal for all ceramic restorations. The beveled cylinders, supercoarse diamonds yield a 145° beveled margin which is desirable for both anterior and posterior margins. The 45 micron diamond refines and smoothes. Includes 1pc diabolo bur, head diameter 1.8mm, head length 2mm, grit ML, 1pc inverted cone with collar bur, head diameter 1.6mm, head length 2.5mm, grit ML, 1pc rounded edge taper bur, head diameter 2.5mm, head length 4mm, grit ML, 1pc rounded edge cylinder bur, head diameter 1.4mm, head length 6mm, grit ML and 1pc end cutting cylinder bur, head diameter 1.4mm, grit ML.