When you design clearance groove for the cylindrical lathe parts such as Shafts, Piston, Valves or Nozzles produced from metal rods, If the angle shall be “not be equal or larger than 28 degrees” , then Machining such angle will need custom-made cutting bit tools or additional machining process that increase costs.
To avoid such extra costs, Angle for clearance groove shall be “smaller than 28 degrees” or “without specifying the Radius size” which allows wider range of ready-made cutting tool selection.
We, E&H Precision, Asia's Largest CNC Machining Metal Lathe Turned Parts Manufacturer has more than 700 CAM / CNC automatic lathe turning machines and Internal Cutting Tool Development Team in Japan, Thailand & India.
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