High hardness, anti-rust, solid and durable. Quick-change composite cone, uses the drill bit principle. Self-centering point, no need for tool hole or center punch Drilling and tapping in one-step machining saves processing and time costs, improves work efficiency. Suitable for drilling, tapping, cutting on soft metal, aluminum plate, iron, etc. Package: 6pcs kit Multi-purpose drill Deburring cutter for hexagonal drills. Drilling / tapping Tapping, deburring and milling. Drill / taps / cutter set, metric,6 pieces Drills / taps. Drilling, tapping and deburring / lowering. The back is tapered on the tap to avoid damaging the wire by piercing too much. Deburring / milling also intended for something beyond the tapered corner. Material: High speed steel Diameters: 1/4 IN quick change hexagon 6pcs kit: 1 * M3 1 * M4 1 * M5 1 * M8 1 * M6 1 * M10 "
