Supports a variety of internal shapes such as tapered SR, stepped, and through-hole designs.
This service provides multifunctional machining that combines deep hole processing using gun drilling with internal shape processing such as tip SR, stepped structures, and through holes. It accommodates a wide range of diameters from φ0.5 to φ30, and has established a processing system that can consistently ensure straightness and coaxiality even for long workpieces with an L/D ratio exceeding 100. Depending on the application, machining methods can be selected, including tip SR for forming a uniform curved surface on the bottom of blind holes, stepped structures for changing diameters along the length, and through holes processed from both ends. By managing everything from outer diameter machining to internal shape finishing and inspection in a consistent manner, we provide stable quality that meets drawing requirements. 【Features】 ■ Broad support for tip SR, stepped structures, and through holes ■ Capable of deep hole processing from φ0.5 to φ30 ■ Supports long workpieces with an L/D ratio exceeding 100 ■ Ensures shape reproducibility through regrinding of dedicated tools *For more details, please download the PDF or feel free to contact us.
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basic information
- Corresponding diameter: φ0.5 to φ30 - Machining depth: Proven machining performance with an L/D ratio exceeding 100 - Tip SR: Forms a uniform curved surface on the bottom of the blind hole - Step holes: Supports diameter transitions and radius addition on stepped sections - Through-hole: Applicable to long workpieces by machining both ends - Stabilizes straightness and coaxiality with a relative rotation method - Maintains various R shapes and tool shapes through regrinding
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Applications/Examples of results
- Deep hole + SR shape machining of flow path components - Machining of multi-stage internal shapes including fitting structures - Micro-stop hole machining for medical and biological-related components - Dragonfly through-hole machining for research and development - High straightness deep hole machining for long materials - Special internal machining including irregular materials and eccentric holes - Step internal shape machining for fluid-related components - Deep hole and through-hole machining inside shafts
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HI-TAK Co., Ltd. is a manufacturer offering integrated solutions from gun drilling machine design and manufacturing to contract deep hole processing. We achieved the world's first deep hole processing of φ1.0mm × L/D=400, and also support ultra-small diameter processing from φ0.5mm. Our in-house developed machines feature high rotational precision with built-in servo spindles, and with over 1,000 types of gun drills and custom jigs manufactured in-house, we meet all deep hole processing needs, including difficult-to-cut materials. [Industries Served] Medical device components (implants, surgical instruments), aerospace parts, automotive parts (molds, common rails), machine tool components, semiconductors, oil plants, and new energy sectors [Processing Capabilities] - Ultra-thin wall deep hole processing, small diameter multi-hole processing, and long workpiece processing up to 3,000mm - ISO 9001:2015 certified, registered medical device manufacturer We accept contract processing from a single piece. Please feel free to contact us.



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