Feature: 1. Made with high‑accuracy grinding and polishing, possess high wear resistance, high temperature resistance, good rigidity, not easy to break 2. Support up and down spiral processing, bring no burrs, perfect combination of blades 3. The product come with high performance, which helps improve work efficiency and reduce costs 4. High‑speed steel material come with good process performance, good combination of strength and toughness 5. Suitable for CNC milling machine processing centers, woodworking machine tools, advertising CNC milling machines, etc. Specification: Item Type: Spiral End Mill Material: High speed steel The Most Suitable Material: Acrylic, wood, compression, aluminum Can Also be Applied to the Following Materials: (1) Medium-density fiberboard, particle board, wooden boards, log boards, and stressed-skin diaphragm; (2) PVC, resin, plastic, particle board, composite board, melamine board; (3) Solid wood, logs, plywood, lotus board Application: CNC milling machine processing center, woodworking machine tool, advertising CNC milling machine, etc. Size D(approx.) D1(approx.) L(approx.) L1(approx.) 2x6x7x51 2mm / 0.08in 6mm / 0.24in 7mm / 0.28in 51mm / 2.01in 3x6x8x52 3mm / 0.12in 6mm / 0.25in 8mm / 0.31in 52mm / 2.05in 4x6x11x55 4mm / 0.16in 6mm / 0.26in 11mm / 0.43in 55mm / 2.17in 5x6x13x57 5mm / 0.2in 6mm / 0.27in 13mm / 0.51in 57mm / 2.24in 6x6x13x57 6mm / 0.24in 6mm / 0.28in 13mm / 0.52in 57mm / 2.25in 7x8x19x63 7mm / 0.28in 8mm / 0.31in 19mm / 0.75in 63mm / 2.48in 8x8x19x63 8mm / 0.31in 8mm / 0.32in 19mm / 0.76in 63mm / 2.49in 9x10x22x72 9mm / 0.35in 10mm / 0.39in 22mm / 0.87in 72mm / 2.83in 10x10x22x72 10mm / 0.39in 10mm / 0.40in 22mm / 0.88in 72mm / 2.84in 11x12x26x83 11mm / 0.43in 12mm / 0.47in 26mm / 1.02in 83mm / 3.27in 12x12x26x83 12mm / 0.47in 12mm / 0.48in 26mm / 1.03in 83mm / 3.27in . Package List: 1 x Spiral End Mill