4Pcs Milling Cutter, 4 Flutes Hss Roughing End Mill Cnc Router Bit Mill Router Specifications: HIGH QUALITY: It is adopted of high quality high speed steel for long serving life. HIGH EFFICIENCY: Has good milling and cutting performance, ensure the high efficiency of the work. SUFFICIENT BENDING STRENGTH: Sufficient bending strength, slot milling, hole and the edge of the board, the surface is clean, neat, no glitches HIGH STRENGTH: High strength, breakage resistance, and have excellent physical properties, long tool life. APPLICATION: Suitable for the needs of all aspects of the milling.