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Cemented carbide drill bits are usually designed to reduce the chisel edge
Suitable for Copper Electrodes
The unique drill point angle ensures easy chip removal and more stable centering
the surface smoothness is better
Small Hole Expansion
BB WCMX Carbide Insert Color:BB2055(Steel) Cemented carbide drill bits areBB Indexable Drill Insert BK2045 Economical general machining, light machining. BF2055 For non ferrous metals, aluminum, copper, wood, etc. BIM2015 General steel BC2055 General machining, DLC coating for increased life and hardness. BL2060 Nano coating, suitable for steel parts, hard steel BK2055M It is an upgrade of BK2045, with higher hardness, suitable for stainless steel and steel parts.