Festool 495663 Domino Router D 4-NL 11 HW-DF 500 4mm

Features:
Routing tools with threaded supports for the DOMINO jointer DF 500
Carbide tipped bit - withstands 5,000 to 14,000 joints, depending on material
Spiral flutes for clean cuts
Internally threaded for quick, easy bit changes
Creates perfect mortise width for Festool 4 mm tenons

Specifications:
D : 4mm
NL : 11mm