Special Design 4 Flute End Mill End Milling Cutter, usually used to be assembled on milling machine Can directly process or precisely process heat treatment mold High toughness, abrasion resistance, fast cutting for high hardness Suitable for: block steel, wrought iron, carbon steel, alloy steel, chisel tool steel, general iron material, etc. Features: 5 pcs End Mill Cutter 5 pcs 4/6/8/10/12 mm 4/6/8/10/12 mm Product Name: End Mill Bits. Material: HSS Flute: 4 End Mill Bits Packing List: 5 x End Mills Product Description Model: 4mm, 6mm, 8mm, 10mm, 12mm Type: Flat End Mill Material: High Speed Steel Yes No Coating: Uncoated Flute: 4 End Mill Bits Cutting Diameter: 4mm/0.16in, 6mm/0.24in, 8mm/0.31in, 10mm/0.39in, 12mm/0.47in Application: Used to be assembled on milling machine Suitable for CNC data processing center, carved, high-speed machines Applicable Scene Used for be assembled on milling machine Suitable for CNC data processing center Reduce the number of tool changes, improve