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**Special Order on code A0103644. Contact AIMS for lead time.**


  • Meets standard DIN 3110, ISO 10102
  • Made from drop forged high-grade special Chrome Alloy Steel
  • Has been optimally hardened in continuous furnaces with no scale build-up or skin decarburization.
  • Has been gently quenched in oil.
  • It is extremely strong yet light-weight due to Stahlwille's 'double-T profile'.
  • Stahlwille's unique plating method prevents the problem of chrome flaking.
  • More material is added where the greatest loads in the spanner are to be found.
  • Sturdy, slim and light tools which also facilitate working in confined spaces due to their compact designs.
  • Snug-fitting, skin-friendly surfaces


Key benefits when tightening and loosening screws

  • Tougher than any bolt due to the forged double hex.
  • Thinner than conventional rings, thus facilitating work in confined spaces.
  • Higher than standard nuts. This prevents the spanner jamming on the nut. 






  • AIMS SKU A0103640
  • Brand Stahlwille
  • Model Number SW10 A 5/16X3/8 - 4043202
  • Barcode Number 4018754019731
  • Tool Size (mm) 5/16" x 3/8"
  • Tool Length (in mm) 140
  • Weight (g) 34
  • Type Open End Spanner
  • System of Measurement Imperial
  • Material Chrome Alloy Steel
  • Finish Chrome Plated
SKU: A0103640

Stahlwille Double Open-Ended Spanner 5/16" x 3/8" AF SW10

Double Open-Ended Spanner, Imperial


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Stahlwille tools

"I recently needed another Stahlwille open ender spanner and socket and was very happy to be able to replacements. I have had my Stahlwille tools for 40 years wont use anything else. They are light, good feel in the hand and are made with precision."


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