| Specification | Parameter |
| Brand | DongCheng |
| Series / Model | DG Series |
| Product Type | Deep Offset Double Ring Spanner Set |
| Total Piece Count | 8 Pcs Set (16 Sizing Variations) |
| Size Range | 6 mm – 22 mm Metric |
| Included Sizes (8 Pcs) | 6x7mm, 8x9mm, 10x11mm, 12x13mm, 14x15mm, 16x17mm, 18x19mm, 20x22mm |
| Ring End Geometry | 75° Deep Cranked Offset, 12-Point (Bi-Hex) Box Profile |
| Material Construction | Drop-Forged & Heat-Treated High-Grade Alloy Steel |
| Surface Finish | Matte Chrome Plated with Fine Polished Ring Interiors |
| Best Used For | Automotive Engine Compartments, Suspension Bolts, Recessed Machinery Fasteners & High-Torque Mechanical Assemblies |
Deep 75-Degree Cranked Offset Design: Angled neck profile lifts user hands clear of obstructions, preventing skinned knuckles while accessing deeply recessed bolts.
Full-Perimeter 12-Point Box Ends: Precision-broached bi-hex rings distribute high rotational torque evenly across fastener flats, preventing corner rounding under load.
Continuous 16-Size Metric Range (6–22mm): 8-piece dual-ended set includes 6x7, 8x9, 10x11, 12x13, 14x15, 16x17, 18x19, and 20x22mm to handle varied mechanical assemblies.
Drop-Forged & Heat-Treated Alloy Steel: Solid forged body architecture provides superior tensile yield strength and resistance to bending under severe manual leverage.
Fine Polished Rings with Matte Chrome Plating: Anti-glare satin finish protects against rust, resists shop solvents, and wipes clean easily in professional automotive bays across Nepal.