The countersink for plasterboard is the ideal hand tool for countersinking edges in Ø 68 mm drill holes. The countersink is specially designed for the flush installation of standard cavity wall boxes. Thanks to the ergonomic geometry, countersinking is a breeze. The 3 sharp blades achieve clean cutting edges and can be replaced with optional replacement blades (item no. 5893000) if required. An indispensable helper for neatly installed switches and sockets in drywall construction, which will reliably assist you in many projects thanks to its robust plastic design.