Stahlwille SW409 1/4" Female to 3/8" Male Step-Up Adaptor, 25 mm
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The Stahlwille 409 is a step-up adaptor with a 1/4" female (6.3 mm) input and a 3/8" male (10 mm) output. It is 25 mm long and weighs 18 g (manufacturer-stated).
The adaptor has a ball detent and is made from HPQ high-performance steel, chrome-plated, which Stahlwille describes as wear-resistant, thin-walled and light. It is listed to DIN 3123 / ISO 3316 (manufacturer-stated).
Where this product is used
- Fitting 3/8" drive sockets to a 1/4" drive ratchet or handle
- Hand-operated service work
- Keeping one ratchet in use across two drive sizes
Features
- 1/4" female to 3/8" male square (manufacturer-stated)
- 25 mm long, 18 g (manufacturer-stated)
- Ball detent (manufacturer-stated)
- HPQ high-performance steel, chrome-plated (manufacturer-stated)
- Listed to DIN 3123 / ISO 3316 (manufacturer-stated)
Key specifications
| Specification | Detail |
|---|---|
| Stahlwille order number | 11030002 |
| Female (input) square | 1/4" (manufacturer-stated) |
| Male (output) square | 3/8" (manufacturer-stated) |
| Square sizes in mm | 6.3 mm female, 10 mm male (manufacturer-stated) |
| Length | 25 mm (manufacturer-stated) |
| Weight | 18 g (manufacturer-stated) |
| Tool retention | Ball detent |
| Standard | DIN 3123 / ISO 3316 (manufacturer-stated) |
| Material | HPQ® high-performance steel, chrome-plated (manufacturer-stated) |
Selecting the right option
The 409 is the standard-length 1/4" to 3/8" step-up. For a shorter 13 mm version see the Stahlwille 409M Step-Up Adaptor, and for 1/2" output from a 1/4" input see the Stahlwille 410 Step-Up Adaptor.
Related products
Related Stahlwille drive tools: Stahlwille 409M Step-Up Adaptor, Stahlwille 410 Step-Up Adaptor, Stahlwille 431 Reducing Adaptor, Stahlwille 415QR N 1/4" Drive QuickRelease Fine-Tooth Ratchet and Stahlwille 435QR N 3/8" Drive QuickRelease Fine-Tooth Ratchet.
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