Machined Round Tube Section with Hollow Aluminium Tube and Radial Through-Holes Near Ends

Outer diameter tolerance class, through-bore diameter, and radial hole pitch are the primary control callouts for a hollow aluminium tube section; radial holes near the tube ends that deviate from the drawn pitch shift the load transfer path between the tube wall and the mating fasteners. Shandong Diheng (through Tai'an Boshen Machinery) machines this hollow aluminium tube with radial through-holes in Taian using CNC milling and turning, with OD, bore diameter, and radial hole positions produced per your drawing tolerances. OD, bore diameter, and hole positions are verified per your drawing before release under ISO 9001 and ISO 45001 certification at Diheng's Shandong facility (roughly 35,000 m²). Typical end markets include hydraulic, machinery, automotive, and PV structure hollow tube. Sandblasting and polishing are available in-house, serving medical equipment, military, and automation applications. To get a proposal from our Taian production team, send your drawing with OD tolerance class, bore diameter, radial hole positions, and alloy grade.