Special stepped drill bit for confirmat screws. The first part of the drill has a diameter of 5mm and is used to cut-in the screw thread. The second part is for the first stage of countersinking the screw head, and the last part is chamfered for the upper part of the countersunk section of the screw.
Catalogue Page
14.19
EF140201G00002 Spax Confirmate drill
F004305, F004427
EF140201G00001 Riex JD65 Confirmate screw, HEX, zinc white
F001806, F002021, F002022, F002024
EF140201G00002 Spax Confirmate drill
F004305, F004427
EF140201G00001 Riex JD65 Confirmate screw, HEX, zinc white