FESTOOL Replacement Bit EB-BSTA D4/2 (2 PACK)Drill countersink BSTA HS D 4 L60 CE (item no. 202392). For drill countersink with depth stop; extremely long service life because the drill bit is made of high quality HSS Bhler steel. The drill sinker makes it possible to countersink and drill patio flooring and substructures in a single step, eliminating the need to spend time switching between applications. Individually adjustable drilling depth for various applications. This long life special