Kangnice 3Pcs 5 Flute Chamfer Debur Countersink 1/4 Hex Shank 90&deg; Wood Chamfer Cutter New Five Flute Chamfer Debur Countersink 1/4" Hex.Ideal for chamfering, deburring and countersinking. Five flute design provides small chip loads and quicker removal.High speed steel construction. 1/4" hex shank.90 Degree chamfer.Shank Size: 1/4 6.3mm hex shank. Tip Degree: 90 Degree,Item Type: Countersink.Flute:5 flute Application Material:Wood,plastic,Aluminum plate etc.Size:12mm 16mm 19mm