Stahlwille 11030003 Female 1/4" to Male 1/2" Adaptor View larger

Stahlwille 11030003 Female 1/4" to Male 1/2" Adaptor




  • Adaptor with a female 1/4" square drive to male 1/2" square drive
  • Made from HPQ® high performance steel

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  • Adaptor with a female 1/4" square drive to male 1/2" square drive.
  • Made from HPQ® high performance steel.
  • Adheres to DIN 3123 and ISO 3316.

Technical Details

PartFemale Drive Size ["]Male Drive Size ["]Length [mm]Weight [kg]

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3 Question(s) answered

  • Asked by Chris
    on 18/10/2018  

    I’m looking for an adapter for my torque wrench. It has 1/4 inch attachment but a need a converter to take it to 1/2 inch. I’m struggling as every adapter I find steps down from 1/2 to 1/4 but not they other way around. Does this do it? Ie has a 1/4 inch female end to 1/2 male end so I can attach a tool that has a 1:2 inch square whole? Answer:
    Yes, the 11030003 would be suitable.
  • Asked by Tom
    on 1/05/2019  

    I have a 1/4 inch drive ratchet and need an adapter to take it up to 1/2 inch drive would this adapter work? Answer:
    Yes, this would be suitable.
  • Asked by Roy
    on 10/04/2021  

    Can this adapter be used on an impact wrench? Answer:
    It would depend on the setting. For low torque settings the standard adapter will work fine, but for high torque, we would recommend using the impact adapter.

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