Festool 493491 Domino D 6 NL 28 HW-DF 500 Router 6mm

Carbide tipped bit - withstands 5,000 to 14,000 joints, depending on material
Spiral flutes for clean cuts
Internally threaded for quick and easy bit changes
Creates perfect mortise width for Festool 6 mm tenons

Specifications:
D : 6mm
NL : 20mm