Technical specification
HOFFMANN 628500 – C‑Hook (Pin) Spanner 25–28 mm
The Hoffmann AMR 628500, manufactured by AMF Andreas Maier GmbH and distributed through Hoffmann, is a high-precision C-hook (pin) spanner designed to fit external nuts with diameters between 25 mm and 28 mm. Complying with DIN 1810 B standards (Type 1810A), this tool delivers the accuracy, strength, and reliability required in industrial assemblies.
Crafted from special steel, the driver head is ground, fully hardened, and burnished, offering excellent durability and precision fit during use. Its 3 mm pin securely engages with nut holes following the DIN 1816 capstan pattern, ensuring effective torque transfer without damaging components.
With a total length of 136 mm, the tool provides optimum leverage for tightening and loosening external nuts while maintaining compactness for use in limited-access machinery. The compact design helps mechanics, technicians, and maintenance crews work efficiently in tight spaces.
| Feature | Specification |
|---|---|
| Product | C‑Hook (Pin) Spanner |
| Article No. | 628500 (25–28 mm) |
| Standards | DIN 1810 B (Type 1810A) |
| External Nut Diameter | 25–28 mm |
| Pin Diameter | 3 mm |
| Overall Length | 136 mm |
| Material | Hardened, burnished special steel |
| Finish | Ground drive head |
| Manufacturer | AMF (Andreas Maier GmbH), Germany; distributed by Hoffmann Group |
| Compatibility | DIN 1816 capstan nut systems |
| Applications | Industrial maintenance, machinery, precision assemblies |
Key Benefits
-
- DIN 1810 B compliance ensures professional-grade quality and compatibility
- Special steel, ground, hardened, burnished finish for longevity and tooling accuracy
- Ø3 mm pin matches standard capstan nuts securely
- Compact 136 mm length for access in tight assemblies
- Durable build suited for frequent industrial use
Ideal for industries such as machine tool manufacture, heavy equipment maintenance, railway, aerospace, and mechanical servicing, the 628500 is a reliable choice where precision and toughness are mandatory. Whether for routine maintenance or installation jobs, it ensures consistent torque control and component safety.
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