Festool 493492 Domino Milling Cutter D 8 NL 28 HW-DF 500 8mm

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 8 mm tenons

Specifications:
D : 8mm
NL : 20mm