The Festool 492523 BSTA HS D 3,5 CE 3.5mm Drill Bit with Depth Stop from ITS is perfectly suited to diverse visible screw fittings in wood, acrylic, aluminium or mineral material. It enables drilling and countersinking in a single work step. Versatile thanks to an adjustable drilling and countersinking depth and extremely durable as a result of the special drill bits long service life. The drill countersink is compatible with the entire Festool CENTROTEC system to quickly change between additional applications. The depth stop moves freely to prevent any damage to the work materials.