SATA ST40242SC Combination Wrench 35mm

Made from chrome vanadium steel with a chrome finish for corrosion resistance. It features a 35mm (across flats) size, a dual open-end and 12-point box-end, a 15° offset box end, off-corner loading for better grip, and an ergonomic handle for comfortable use.

Off-corner loading reduces fastener rounding by distributing contact more evenly and provides a stronger grip when the wrench is engaged on the corners of the fastener.

The 12-point box end engages many standard fastener profiles more securely and reduces rounding when under load, especially in tight spaces.

Open-end is great for quick turning and accessing crowded or awkward angles; box-end is preferred for high-torque tightening or loosening and when you need a more secure grip on the fastener.

Automotive repairs, plumbing, heavy machinery maintenance, and other situations requiring a reliable 35mm dual-function wrench with good torque capacity and access in cramped spaces.

Ensure the size matches the fastener, apply steady, even pressure, avoid overtightening, and use the correct end for the task. Let the wrench seat fully before applying force to minimize slipping.

Wipe clean after use, dry thoroughly, and apply a light coat of oil to prevent rust. Store in a dry place and avoid dropping to prevent deformation.

Look for the 35mm sizing marking, the combined open-end and box-end design, and the slim profile with the 15° offset box end for clearance.

Yes. It is engineered for high-torque use, with a strong chrome-vanadium construction and a geometry designed to resist deformation under load.

Its dual-function design, off-corner loading on the box end, and the 15° offset provide better grip, faster work in tight spaces, and reduced fastener rounding compared with standard single-ended wrenches.

Yes—consider other SATA wrenches and metric tool sets in Fepy's catalog to build a complete toolkit for automotive and mechanical tasks.