Replacement drill bit for the best drilling results. Replacement drill bit for CENTROTEC countersink drill bits with depth stop. Fast installation and securing via a grub screw on the drill countersink. Drilling and countersinking in a single pass in various materials such as wood, aluminium, acrylic, mineral material|Furniture manufacture|Kitchen fitting|Assembly work. very long service life because the drill bit is made of high-quality HSS Böhler steel. for drill countersink BSTA HS D 4 L60 CE (item no. 202392)