The eccentric attachment with quick angle adjustment allows for drilling and screwing applications near edges. It can be used with drill drivers that have a FastFix chuck and a bayonet lock. The lockable 1/4" bit holder prevents bits or Centrotec accessories from accidentally falling out. The easy mounting on the cordless screwdriver is facilitated by the FastFix interface and the bayonet lock. The bit retention features a ball clamp for a secure hold of the bit or Centrotec accessory, and the rotating bit retention allows for optimal handling. The quick angle adjustment is achieved by simply turning the green ring, eliminating the need to detach the attachment from the machine. The main areas of application include drilling and screwing near edges, kitchen assembly, fitting installation, furniture construction, and assembly work.