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Solid Carbide Inner Coolant Twist Drill Bit Cutter 3D Drilling Tool for Metal

Solid Carbide Inner Coolant Twist Drill Bit Cutter 3D Drilling Tool for Metal
Long Life Solid Carbide Inner Coolant Twist Drill Bit Cutter 3D Drilling ToolProducts Function:1.HRC: HRC45 HRC50 HRC55...

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