Socket Wrench Set saTra S-12FGW72 8–22 mm ratcheting open-box combination keys, 12 pieces

saTra S-12FGW72 is a 12-piece socket wrench set that includes ratcheting combination wrenches in sizes 8–22 mm. Each tool in the set features an open (flare) jaw on one end and a ratcheting boxed end on the other, enabling continuous turning of fasteners without repositioning. The compact profile of the boxed end and the fixed open jaw provide access in confined spaces, making the set suitable for routine automotive, maintenance and mechanical repair work where efficient bolt and nut handling is required.

Advantages

The ratcheting boxed end allows rapid tightening and loosening with fewer handle movements, while the open (flare) end offers immediate engagement on nuts and bolts for quick initial turns or where ratcheting is not practical. The set spans common metric sizes from 8 mm to 22 mm, reducing the need to switch between multiple tools. Durable construction and a combination layout deliver versatility for both professional and hobbyist users in workshop or field environments.

Suitable for

• Automotive repair and servicing
• General mechanical maintenance
• Assembly and disassembly of machinery
• Work in confined spaces requiring compact wrench heads
• Routine fastening and loosening tasks in workshops

Key specifications

• Number of pieces: 12
• Sizes included: 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 19 mm, 22 mm
• End configuration: open (flare) end and ratcheting boxed end
• Ratcheting mechanism: reversible for continuous turning
• Material and finish: robust chrome-plated alloy steel (typical for this tool type)
• Head profile: compact boxed end for limited-access applications

How to use

Select the wrench size that corresponds to the fastener. Fit the open end or boxed end over the nut or bolt head; use the open end for quick initial engagement or where access prevents using the boxed end. When using the ratcheting boxed end, set the direction lever (if present) to the required rotation direction and operate the handle with short back-and-forth motions to turn the fastener without removing the wrench. Apply controlled force and avoid excessive torque beyond the tool’s capability to prevent damage to the wrench or fastener.

Usage recommendations

Keep the wrenches clean and lightly lubricate the ratcheting mechanism periodically. Store the set in an organized rack or pouch to protect the teeth and maintain accurate fit. For stubborn or rusted fasteners, use penetrating lubricant and appropriate safety measures rather than applying excessive leverage to the wrench.