This 1/2 inch shank high speed steel twist drill bit forged with high quality 9341 steel, the head is quenched and heat treated, it is high hardness and good wear resistance. The cutter head adopts scientific design, precision grinding technology, good wear resistance and durability. Mainly used for boring and milling, processing iron, steel, plastic, wood, copper, aluminum and other metal materials.Features:1. Forged with high quality 9341 steel, the head is quenched and heat treated, it is high hardness and good wear resistance.2. The cutter head adopts scientific design, precision grinding technology, good wear resistance and durability.3. Large vortex design, enlarge chip removal slot, smooth and flat, high temperature resistance, non-stick knife.4. 1/2 round shank design, mainly used for boring and milling, processing iron, steel, plastic, wood, copper, aluminum and other metal materials.5. 100% brand new and high quality.Specification:Item Name: 1/2 shank steel milling drill bitMaterial: high speed steelOuter blade apex angle: 130Package list:1 x Drill BitNote:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering..