Combination wrenches set Keltin 12 pcs CR-V satin finish sizes 6–22 mm

Set of 12 Keltin combination wrenches in satin finish, made from chrome-vanadium (CR-V) steel. The set includes metric sizes from 6 mm to 22 mm and combines an open-end and a ring (box) end on each wrench. The satin finish reduces glare and resists surface corrosion while the CR-V construction provides a balance of strength and toughness for common mechanical, automotive and household repair tasks.

Advantages

The combination of an open end and a ring end on each wrench gives versatility: the open end allows quick engagement on bolts in confined spaces while the ring end provides a secure multi-point grip to reduce rounding of fasteners. Constructed from CR-V steel, the wrenches are designed for repeated use with enhanced wear resistance. The satin finish helps hide scratches and is less reflective than polished tools, supporting safer use in bright environments.

Suitable for

• Automotive maintenance and repairs (engine components, brake and suspension work)
• Mechanical assembly and disassembly of machinery
• Household repairs and DIY projects
• Bicycle and small equipment maintenance

Key specifications

• Material: chrome-vanadium (CR-V) steel
• Finish: satin
• Set contents: 12 combination wrenches (open-end + ring end)
• Metric sizes included: 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 17 mm, 19 mm, 22 mm — note: list includes coverage for common metric fasteners
• Ring end type: multi-point profile for improved contact with fastener
• Typical uses: tightening and loosening bolts and nuts in confined or exposed locations

How to use

Select the wrench that matches the fastener size and seat the ring end fully onto the nut or bolt for maximum contact when applying torque. Use the open end where the ring end cannot fit or where quick engagement is required. Apply steady, controlled force and avoid sudden impacts or using the wrench as a hammer. If additional leverage is required, use proper-length tools or a suitable breaker bar rather than extending the wrench with piping, to avoid tool damage or fastener rounding.

Usage recommendations

Store the wrenches in a dry place to limit corrosion and keep them organized by size. Inspect tools before use for wear or deformation, and replace any wrench showing significant damage. For critical or high-torque applications, use the ring end and consider torque-controlled tools to achieve specified fastening values.