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Drill rod for producing deep, conical, stepped boreholes for manufacturing jet, has cutting plate arrangement, cylindrical front section, and conically increasing section formed as free-form section
Drill rod for producing deep, conical, stepped boreholes for manufacturing jet, has cutting plate arrangement, cylindrical front section, and conically increasing section formed as free-form section
The rod has a cutting plate arrangement, a cylindrical front section, and a conically increasing section formed as a free-form section. Multiple holes are provided for coolant supply, where the rod is made of steel alloy, heavy metal or hard metal.
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