PRODUCT DETAILS Click an item to expand and learn more Overview Mafell's 3mm (approximately 1/8") steel drill bit for the DDF 40 Duo Dowel System is sold individuallyThis bit is also used by some legacy Mafell duo dowel systems such as the DD40G and Hoffman PDS-32 (700W 18500 rpm Version)Uses:Creating mortise and tenon jointsCutting deep slots for joineryMaking large-scale notches in timberCarving out areas for hardware installationCreating recesses for door locksForming deep grooves for structural beamsCrafting custom slots for unique fittingsHollowing out sections for decorative elementsEnlarging existing holes in wood beamsPrecision removal of wood for restoration projects Reviews Questions and Answers