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Urrea 31617 Metric Open-End Wrench, 16x17mm
The Urrea 31617 is a dual-ended full-polish metric open-end wrench designed for secure, precision access in tight industrial or mechanical spaces. Forged from a high-quality molybdenum-vanadium steel alloy and treated with controlled thermal processing, this wrench delivers superior durability and torque capacity. Its thin-profile, precisely machined 16mm and 17mm openings are optimized for confined working environments without compromising strength.
This tool features Urrea's patented UGS system on the open ends, which distributes applied torque across three specific points of contact rather than just the corners. This design minimizes the risk of rounding fasteners and provides reliable engagement even on partially stripped nuts and bolts. Combined with a 15-degree head inclination angle, the wrench reduces the necessary recovery angle to just 30 degrees on 6-point bolts, significantly enhancing efficiency during repetitive fastening tasks or in restricted areas where ratcheting is impossible.
Key Features and Specifications
- Wrench Type: Dual-sized open-end wrench
- Opening Sizes: 16 mm x 17 mm
- Total Length: 8.25 inches
- Material: Molybdenum-vanadium steel alloy with controlled thermal treatment
- Finish: Full-polish, corrosion-resistant nickel-chrome plating
- Handle Design: Ergonomic oval profile for improved grip and comfort
- Head Inclination: 15° offset for a reduced 30° recovery angle on 6-point fasteners
- Engagement Technology: Patented UGS system for 3-point force distribution (ideal for stripped edges)
- Compliance: Exceeds ASME B107.100 standards
Frequently Asked Questions
Q: How does the UGS system on the Urrea 31617 help with damaged fasteners?
A: The patented UGS design shifts contact away from the very corners of the fastener, applying force across three distinct points along the flats. This minimizes localized stress and allows the wrench to securely turn nuts or bolts that have partially stripped or rounded edges.
Q: What is the advantage of the 15-degree head inclination angle?
A: The 15-degree offset allows the user to flip the wrench over after each turn. This reduces the required recovery arc to just 30 degrees on 6-point fasteners, making it much easier to work in tight spaces where full swing clearance is obstructed.