Combination ratchet wrench set STANLEY ST-STMT82847-0, 12 pieces, sizes 8–19 mm

STANLEY ST-STMT82847-0 is a 12-piece combination ratchet wrench set covering common metric sizes from 8 mm to 19 mm. Each tool pairs a conventional open-end with a ratcheting box end, enabling both standard turning and quick ratcheting action without repositioning the wrench. The set is designed for compact storage and frequent use in automotive, maintenance and general mechanical repair tasks where access is limited.

Advantages

The combination of an open-end and a ratcheting box end on each wrench reduces the need to switch tools during work and speeds up repetitive fastening operations. Ratcheting ends allow continuous rotation in confined spaces where full handle movement is restricted. The set format with sizes 8–19 mm provides coverage for a broad range of metric fasteners commonly found on cars, machinery and household equipment. Tools are organized as a matched set to simplify selection and storage.

Suitable for

• Automotive repairs and maintenance
• Mechanical assembly and disassembly
• General workshop and home maintenance tasks
• Situations requiring work in tight or recessed spaces

When it may not be suitable

This set is metric-only and therefore not appropriate where imperial (inch) sizes are required. For very heavy industrial applications that require impact-rated or oversized torque tools, these hand wrenches may not be ideal. If your work requires extreme torque beyond standard hand-wrench capabilities, consider using torque-rated or powered tools.

Key specifications

• Number of pieces: 12
• Metric sizes included: 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm
• Type: Combination wrench with open-end and ratcheting box end
• Drive mechanism: Ratcheting action on box end for continuous rotation
• Intended use: Hand tightening/loosening of metric fasteners

How to use

Select the correct metric size for the fastener and place the open-end or box end over the nut or bolt. Use the open-end for initial engagement or when space allows direct turning. Use the ratcheting box end when limited swing is available: position the box end around the fastener and move the wrench handle back and forth to actuate the ratchet without lifting the tool off the fastener. Apply steady, controlled force and avoid sudden impacts. After use, return wrenches to their storage rail or organizer to keep the set complete and protect the ratchet mechanism.

What to consider before purchase

• Ensure metric sizes 8–19 mm match the fasteners you commonly work with
• Consider whether you need imperial-sized tools in addition to this metric set
• Check whether you require impact-rated or torque-certified tools for high-torque applications
• Assess the storage format and whether a rail or case fits your workshop organization

Usage recommendations

Use the ratcheting ends for repetitive fastening in tight spaces and reserve the open ends for initial alignment or higher-clearance turning. Regularly clean and lightly lubricate the ratchet mechanism to maintain smooth operation and inspect tools for wear before high-torque tasks.