Youll achieve smooth accurate cuts without chatter in any wood, hard or soft, with these Solid-Carbide Router Bits. The spiral design pulls waste material from the cut and leaves a flat-bottomed mortise, and teach bit is machined from solid carbide to production quality standards.Solid carbide cuts smoother and runs cooler to stay sharp longer. Up-cut bits offer better chip ejection. Perfect for mortises, stopped dadoes and plunge cuts. Metric sizes to work with Festool Domino loose tenon joinery1/4" shank.