Festool 202393 Drill Bits EB-BSTA D4/2 are designed for drill countersinking with a depth stop, ing an extremely long service life thanks to the high-quality HSS Böhler steel construction. This drill sinker allows you to countersink and drill patio flooring and substructures in a single step, saving time by eliminating the need to switch between different tools. The drilling depth is individually adjustable to suit various applications, ensuring versatility and precision. Built for durability, this long-life special drill bit is easy and quick to replace, maintaining efficiency throughout its use. Compatible with the entire CENTROTEC system, the drill countersink features a CENTROTEC chuck with hexagonal tools centered by ball bearings, providing optimized power transmission and exceptional accuracy. Model Number: 202393