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Hexagon socket, 3/8 inch Surface Drive, Width across flats: 21mm

Article no.: 637125 21

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Width across flats (mm) Unit price incl. VAT
  • 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.

Material:

Chrome vanadium steel, chrome-plated.

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