For rational boring and countersinking of deepenings for plates and washers in one step. e.g. countersinking washers and scres in structural composite lumber 500–1000 RPM.
Suitable for bit Nr. 0089S / 0084B / 0084 (page 56-62). from Ø 12 mm up to Ø 40 mm. Clamping is made with a clamping screw.