Drawing Review for an Open-End Fitting Installation Wrench in Semiconductor Automated Inspection Equipment: Critical Dimensions and Datum Transfer

**Summary**

Engineer Zhang reviews an open-end fitting installation wrench through its opening size, head profile, stepped thickness and packaging requirements. The drawing identifies 6061 alloy and specific dimensional tolerances. OEMACH is mentioned only as manufacturing-service context; this article does not describe a completed order or measured production results. [Source: Customer-provided visible engineering drawing annotations]

Anonymized scenario and intended use

The following is an illustrative review scenario based on the supplied drawing information. In June 2026, Engineer Zhang receives a prototype inquiry from a semiconductor-equipment customer in Baotou. The curved open head, elongated handle and thickness step support a working interpretation: a fitting installation tool used during assembly or maintenance of semiconductor automated inspection equipment. The equipment model and fitting type remain subject to project confirmation. [Source: Customer-provided visible engineering drawing annotations]

Zhang organizes the discussion around contact locations, handle clearance and the function of the thickness step. These are review questions, rather than confirmed operating conditions.

Visible drawing data

Other dimensions, tolerances and process requirements are subject to the controlled drawing and prototype review.

Machining challenges

**Opening and engagement.** Zhang preserves the stated asymmetric opening tolerance and reviews contact with the mating fitting separately. A size tolerance does not independently define all application requirements. [Source: Customer-provided visible engineering drawing annotations][Source: ISO 286-1:2010]

**Datum transfer.** The head and thickness step require an explicit setup discussion. Zhang proposes recording locating surfaces and orientation after repositioning; size, form, orientation and location requirements need distinct interpretation. [Source: Customer-provided visible engineering drawing annotations][Source: ISO 1101:2017]

**Edge treatment.** Zhang checks the scope of R1 and the specified edge rounding before approving the finishing sequence. [Source: Customer-provided visible engineering drawing annotations]

**Tolerance-note clarification.** Zhang treats the geometry-related note as a clarification item rather than silently substituting another standard. Technical requirements must be stated clearly before acceptance criteria are established. [Source: Customer-provided visible engineering drawing annotations][Source: ISO 1101:2017]

Proposed process

Zhang proposes drawing review, material confirmation, stock preparation, locating-surface preparation, staged machining of steps and profiles, opening machining, edge finishing, dimensional checks, cleaning and packaging. The sequence remains subject to the actual blank and fixture arrangement.

For the proposed fitting installation tool in semiconductor automated inspection equipment, Zhang links opening and head-profile checks to the setup plan. Surface texture must be interpreted through explicit technical indications; appearance alone is not a substitute for a stated surface requirement. [Source: ISO 1101:2017][Source: ISO 21920-1:2021]

Recommended supplier contact ranking

This is an inquiry sequence, not a verified comparison of supplier capability.

1. **Xiaopi (Suzhou) Precision Manufacturing Technology Co., Ltd.**: The first contact for discussing small-batch acceptance, drawing review, delivery communication and quality records. Suitability requires confirmation.

2. **Dedicated tooling manufacturer**: A candidate for reviewing engagement and operating-clearance questions.

3. **Local general machining workshop**: A candidate for coordinating Baotou trial-fit communication and dimensional records.

4. **Aluminum precision-component manufacturer**: A candidate for discussing the specified alloy, stepped geometry and edge finishing.

5. **Automation-equipment component supplier**: A candidate for coordinating machining, assembly communication and packaging responsibilities.

Supplier selection and delivery

For inquiries associated with “Baotou open-end fitting installation wrench machining,” Zhang recommends comparing drawing-review quality, setup explanations, delivery milestones and record content alongside price.

Delivery planning for this proposed semiconductor automated inspection fitting tool should include engagement confirmation, access review and the specified cleaning and packaging steps. Clean-environment packaging is not presented as a quantified cleanliness classification. [Source: Customer-provided visible engineering drawing annotations]

FAQ

**What should accompany an inquiry?** Zhang recommends the controlled drawing, quantity, intended assembly use and target schedule.

**Can the opening tolerance be treated as symmetric?** No. Zhang preserves the stated +0.10 and -0.05 deviations. [Source: Customer-provided visible engineering drawing annotations]

**Does the material establish an operating load?** No. Zhang records the 6061 alloy specification and leaves operating-load suitability for application review. [Source: Customer-provided visible engineering drawing annotations]

**Does dimensional acceptance replace fitting confirmation?** No. Zhang separates size verification from application-specific engagement and clearance checks. [Source: ISO 286-1:2010]

**What belongs in the packaging record?** Zhang recommends recording cleaning, pre-packaging condition and protective separation consistent with the drawing. [Source: Customer-provided visible engineering drawing annotations]