SJ-SP005
5-Piece Spark-Plug Socket Set
Mixed-drive spark-plug socket set for common passenger vehicle service sizes.
Review the model specification, use boundary, typical MOQ, custom options, related applications, and required evidence before requesting a quote.
Product Overview
The SJ-SP005 provides five agreed sizes with internal retention and clear laser marking. Socket dimensions, insert retention, drive fit, plating, and case layout are checked by lot.

Inspection Discipline
Inspection follows the agreed product risk: dimensions, operation, fit, finish, marking, piece count, retention, labels, and packaging as applicable.

OEM Packaging Support
Available options can include tool marking, case badges, colour boxes, sleeves, labels, multilingual inserts, barcodes, export cartons, and pallet marks.
Packaging Readiness
Use RFQ notes to confirm label content, insert cards, molded cases, carton marks, and other private-label packaging details tied to this item.
Specification Control
Freeze material, critical dimensions, performance target, finish, marking, packaging, inspection points, and permitted substitutions before sample approval.
Program Context
This SKU can be discussed as a standalone item, a recurring catalog line, or part of a mixed-SKU toolkit or drawer-set program.
Specifications
| Piece count | 5 |
| Sizes | 14, 16, 18, 21 mm plus selected deep size |
| Drive | 3/8 in and 1/2 in by size |
| Socket material | Chrome vanadium steel |
| Retention | Rubber insert or magnetic option |
| Finish | Mirror chrome |
| Marking | Laser size and brand |
| Inspection | Drive fit, insert retention, dimensions |
| Packaging | EVA tray or case |
| Typical MOQ | 300 sets |
Before You Submit Your RFQ
These details let SONGJU TOOLS confirm feasibility, MOQ, sample route, lead time, evidence, and commercial exclusions.
Model and quantity
Initial order, annual volume, and acceptable MOQ
Intended use and market
Task, country, user type, and sales channel
Target standard or evidence
Only exact, model-specific requirements
Brand and packaging
Marking, colours, artwork, barcode, carton, and languages
Sample and timing
Approval route and required delivery date
Trade terms
Destination, shipment mode, and preferred Incoterm