ITEM NAME:3Pcs 12mm-19mm metal countersink drills tool for hex shank chamfer cutter too lj Description: 100% brand new and high quality. 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. Item Type: Countersink. Application Material:Wood,plastic,Aluminum plate etc. size:12mm 16mm 19mm Packaging includes:3 x Countersink Drill.Five Flute Chamfer Debur Countersink 1/4" Hex. Item Type: Countersink. size:12mm 16mm 19mm. Five flute design provides small chip loads and quicker removal. Application Material:Wood,plastic,Aluminum plate etc.