Ring wrench YATO YT-4945, chromium-vanadium steel, sizes 10/13/17/19 mm, 200 mm length

YATO YT-4945 is a set of ring wrench ends manufactured from chromium-vanadium steel with a stainless-steel finish. The set includes four closed-end wrenches in sizes 10 mm, 13 mm, 17 mm and 19 mm, each with a working length of 200 mm. These ring wrench ends are designed for tightening and loosening hex fasteners in automotive, mechanical and general maintenance tasks where corrosion resistance and tool durability are important.

Advantages

The chromium-vanadium steel construction provides high tensile strength and wear resistance while the stainless-steel finish helps protect against corrosion during regular use. The closed-ring profile ensures even force distribution on hex fasteners, reducing the risk of rounding. A consistent 200 mm length offers good leverage for tightening and loosening bolts in medium-depth recesses without sacrificing control.

Suitable for

• Tightening and loosening hex bolts and nuts in automotive repair
• Maintenance and assembly of mechanical equipment
• Workshop and home repair tasks requiring durable hand tools
• Situations where corrosion resistance and reliable grip are needed

Key specifications

• Material: chromium-vanadium steel
• Finish: stainless-steel surface treatment for corrosion resistance
• Sizes included: 10 mm, 13 mm, 17 mm, 19 mm
• Working length: 200 mm each
• Type: closed ring wrench ends for hex fasteners

How to use

Select the wrench size that matches the hex fastener. Place the closed ring fully over the fastener head to ensure full contact with the flats. Apply steady, controlled force to turn the wrench, using the 200 mm length for additional leverage when necessary. For loosening seized or rusted fasteners, apply penetrating lubricant and allow it to act before attempting to turn. Avoid using the wrenches as pry bars or striking them with hammers to prevent deformation.

Usage recommendations

Inspect the wrench profile before use and keep contact surfaces clean to maintain grip and prevent rounding of fasteners. Store the set in a dry place and periodically wipe the finish to reduce corrosion. Use the correct size to avoid damage to the tool and fastener; for high-torque applications, consider a torque-controlled tool if precise torque is required.