Carbide tipped 2-wing finger joint cutter, 160mm diameter, 4mm thick, 50mm bore, .6mm wide tip, 7 deg. slope, cuts 11.5mm long finger joint (for millwork and stud use), resharpenable 12 to 25 times.  C3 micro-grain carbide teeth for long life, hardened alloy plate for truer cutting tolerances.