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Hexagon socket, 3/8 inch Surface Drive, Width across flats: 21mm
Article no.: 637125 21
Article code:
- Square drive: 3/8
- Hexagon socket profile: Surfacedrive
- Material: Chrome vanadium steel
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Product details
Technical Data
| Width across flats | 13/16 in | |
| Width across flats | 21 mm | |
| Square drive | 3/8 in | |
| Hexagon socket profile | Surfacedrive | |
| Standard | DIN 3124 | |
| ⌀ drive output end | 27.9 mm | |
| Length | 29 mm | |
| Drive profile | Hexagon socket Surfacedrive | |
| Material | Chrome vanadium steel | |
| Surface | chrome-plated | |
| Type of product | Socket insert |
Identification numbers & Classifications
| Article number | 637125 21 | |
| EAN / GTIN | 4045197497468 | |
| Manufacturer number | 637125 21 |
Description
Version:
Forged from high quality steel, internally bevelled for easy fitting to bolt heads. Internal square to DIN 3120.
The Surface Drive socket allows a tighter fit and higher effectiveness. The pressure works directly on the faces of the nuts and bolts; weaker corners are protected. Intermediate sizes e.g. in inches (A/F, BSF, BSW) and rounded heads can be tightened or loosened using the Surface Drive.
The Surface Drive socket allows a tighter fit and higher effectiveness. The pressure works directly on the faces of the nuts and bolts; weaker corners are protected. Intermediate sizes e.g. in inches (A/F, BSF, BSW) and rounded heads can be tightened or loosened using the Surface Drive.
Material:
Chrome vanadium steel, chrome-plated.
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| ⌀ drive output end | 27.9 mm | 27.9 mm | 27.9 mm | 27.9 mm |
| Drive profile | Hexagon socket Surfacedrive | Hexagon socket | Hexagon socket | Bi-hex socket |
| Square drive | 3/8 in | 3/8 in | 3/8 in | 3/8 in |
| Length | 29 mm | 29 mm | 29 mm | 29 mm |
| Width across flats | 21 mm | 21 mm | 21 mm | 21 mm |
| Type of product | Socket insert | Socket insert | Socket insert | Socket insert |