Product Description
Keuffel & Esser 71-1010 Paragon Jig Transit – Precision Optical Tooling Instrument with Auto-Reflection Mirrors
This used Keuffel & Esser (K&E) 71-1010 is a professional-grade jig transit designed to produce the highest accuracy in optical tooling and alignment work . As part of the Paragon series, this instrument is renowned for its precision in establishing precise vertical planes, plumb lines, and measuring angles for industrial alignment, aerospace jig work, and optical tooling .
The Jig Transit functions as a high-accuracy alignment telescope integrated with precision angle measurement capabilities. It is specifically designed for optical tooling applications in industries such as aircraft manufacturing, where lining up jigs and assemblies requires extreme accuracy . The instrument is listed under NSN 6675-00-015-1831, confirming its use in military and high-precision applications .
Auto-Reflection Upgrade (Key Feature): This particular unit is upgraded with Auto-Reflection Mirrors. This specialized accessory allows for autocollimation, enabling the instrument to align optical components by detecting their reflected light. This feature significantly enhances its capability for precise tooling and alignment in R&D and advanced manufacturing environments, beyond standard surveying functions.
Condition Note: This unit is untested and sold as-is. It is a precision instrument that likely requires professional calibration and cleaning before use. No original case or accessories are guaranteed unless specified. Handle with care.
Key Specifications
| Specification | Details |
|---|---|
| Manufacturer | Keuffel & Esser Company (K&E) |
| Model | 71-1010 |
| Type | Jig Transit / Optical Tooling Instrument |
| Application | Precision alignment, optical tooling, jig calibration |
| US NSN (National Stock Number) | 6675-00-015-1831 |
| CAGE Code (Manufacturer) | 66796 |
| Magnification | 20x at 8 inches; 30x at infinity (automatic variation) |
| Resolution | 4 seconds of arc |
| Telescope Length | 11.25 inches |
| Field of View | 55 minutes at infinity |
| Effective Aperture | 30 mm |
| Focus Range | 8 inches to infinity |
| Level Vial | Standard level vial (No. 71-3260) and circular vial |
| Approx. Weight | 26.5 lbs |
| Included | Auto-Reflection Mirrors |
Key Features & Benefits
| Feature | Benefit |
|---|---|
| Jig Transit Design | Designed for the highest accuracy in optical tooling and alignment . |
| Auto-Reflection Mirrors | Enables autocollimation for precise alignment of optical components. |
| Hollow Azimuth Center | Line of sight is centered with the axis, allowing for vertical sighting . |
| Two-Speed Tangent Screws | Precision fine adjustment on both azimuth and elevation axes for precise leveling and collimation . |
| Variable Magnification | 20x to 30x magnification, automatically adjusting for close-up and infinity focus . |
| US Military NSN | Standardized part number confirms its professional-grade construction and military acceptance . |
| Fully Erecting Optics | Provides an upright image, essential for alignment tasks . |
| K&E Paragon Series | Part of a legendary line of premium optical instruments known for reliability and precision. |
Applications
-
Aircraft and Aerospace Tooling: Aligning jigs and assembly fixtures for fuselages and wings .
-
Optical Tooling: Establishing reference lines and measuring angles in optical systems.
-
Industrial Metrology: Precision alignment of heavy machinery and manufacturing equipment.
-
R&D Laboratories: For high-precision angular measurements in experimental setups.
-
Surveying (Non-Construction): For high-accuracy alignment jobs beyond standard construction surveying.
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