BB Internal Cooling Carbide Drill 3xD Diameter DLC CNC High Feed Machining for Aluminum Copper BC2055 Hole Diameter:1.4*D4*12*50 please choose Express way

please choose Express way

stars or other special shapes

• 寿命短

整体硬质合金材质，具备极高硬度与耐磨性，专为精密、持久加工而设计。

Sharp cutting edges and low friction rake surfaces-avoid built up edge and gumming

BB Internal Cooling Carbide Drill 3xD Diameter DLC CNC High Feed Machining for Aluminum Copper BC2055 Hole Diameter:1.4*D4*12*50 please choose Express wayName: BB Micro Drill Material: Micro grained carbde Number of flutes: 2 Series: BC2055 Diameter of shank: 4mm~20mm Application: For general purpose Cuting diameter Shank diameter (D) Cuttlng length (L) Total length (OL) Angle Tolerance 1. 0~1. 2 4 11 50 118 0. 005 1. 25~1. 9 4 12 50 118 0. 005 1. 95~3. 0 4 15 50 118 0. 005 3. 0~4. 0 4 20 50 118 0. 005 1. 51~2. 0 4 10 50 118 0. 005 3. 3~3. 7 6 20 62 118 0. 005 3. 8~4. 7 6 24 66 118 0. 005 4. 05~4. 65 6