External cooling drill bit

• Low drilling force, good performance on a variety of machine tools
• Excellent centering performance
• The composite coating of TiAlN matrix material has good thermal hardness
• Cutting speed can be increased by 30%, tool life is stable
• Edge passivation reduces tool wear when machining cast iron steel and other workpieces

• Cutter cutting edge design ensures high feed performance
• Excellent metal removal rate
• The composite coating of TiAlN matrix material has good thermal hardness
• Cutting speed can be increased by 30%, tool life is stable
• Edge passivation reduces tool wear when machining cast iron steel and other workpieces