Stahlwille SW40aD 1/2" Bi-Hex Socket, 1/4" Drive, 23 mm Long
Available
The Stahlwille 40aD is a 1/4" drive bi-hex socket range in inch sizes from 5/32 to 9/16". Ten of the 11 sizes are 23 mm long and the 9/16" is 24 mm (manufacturer-stated).
The bi-hex (double hexagon, 12-point) profile carries Stahlwille's AS-Drive (Anti-Slip Drive) form, which the maker says transmits high forces to the flats of nuts and bolts without damaging them. The sockets are HPQ steel, chrome-plated, and Stahlwille specifies hand operation only. Stahlwille lists the range to ASME B 107.1 / Fed. Spec. GGG-W-641 / SAE AS 954-E (test values) (manufacturer-stated).
Where this product is used
- Inch-series fasteners from 5/32 to 9/16" turned with a 1/4" drive ratchet or handle
- Work on equipment built to inch sizes, where a short socket is needed
- Kits that pair a metric 40D set with inch sizes
Features
- 1/4" internal square drive, inch sizes 5/32 to 9/16" (manufacturer-stated)
- Bi-hex (12-point) profile with AS-Drive anti-slip form (manufacturer-stated)
- 23 mm long, 24 mm for the 9/16" (manufacturer-stated)
- HPQ steel, chrome-plated (manufacturer-stated)
- Hand operation only (manufacturer-stated)
- Listed to ASME B 107.1 / Fed. Spec. GGG-W-641 / SAE AS 954-E (test values) (manufacturer-stated)
Common specifications
| Specification | Detail |
|---|---|
| Square drive | 1/4" |
| Sizes | 5/32 to 9/16" |
| Length | 23 to 24 mm |
| Profile | Bi-hex (double hexagon, 12-point) with AS-Drive profile |
| Standard | ASME B 107.1 / Fed. Spec. GGG-W-641 / SAE AS 954-E (test values) (manufacturer-stated) |
| Material | HPQ steel, chrome-plated |
| Operation | Hand operation only |
| Sizes in this range | 11 |
Key specifications
| Size (across flats) | Order no. | Length | Weight |
|---|---|---|---|
| 5/32" | 01530010 | 23 mm | - |
| 3/16" | 01530012 | 23 mm | - |
| 7/32" | 01530014 | 23 mm | 9 g |
| 1/4" | 01530016 | 23 mm | - |
| 9/32" | 01530018 | 23 mm | - |
| 5/16" | 01530020 | 23 mm | 11 g |
| 11/32" | 01530022 | 23 mm | 13 g |
| 3/8" | 01530024 | 23 mm | 16 g |
| 7/16" | 01530028 | 23 mm | 21 g |
| 1/2" | 01530032 | 23 mm | - |
| 9/16" | 01530034 | 24 mm | - |
A dash means no weight is published for that size on this page. Lengths and weights are manufacturer-stated.
Selecting the right option
The 40aD is the short inch-size 1/4" socket. If the fastener sits deeper than a 23 mm socket will reach, use the 50 mm long Stahlwille 40aDL 1/4" Drive Long Bi-Hex Sockets. For metric fasteners see the Stahlwille 40D 1/4" Drive Bi-Hex Sockets. For larger inch sizes move up to the 3/8" drive Stahlwille 45a 3/8" Drive Bi-Hex Sockets.
Related products
Related Stahlwille 1/4" drive tools: Stahlwille 415QR N 1/4" Drive QuickRelease Fine-Tooth Ratchet, Stahlwille 416QR 1/4" Drive QuickRelease Flexible-Joint Ratchet, Stahlwille 405 1/4" Drive Extension Bars, Stahlwille 410 Step-Up Adaptor, Stahlwille 400QR 1/4" Drive QuickRelease Handle and Stahlwille 12916/10 Clip Strip for Socket Retention.
Resources
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1/2mm socket
Model Number: SW40 AD 1/2 - 01530032
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1/4mm socket
Model Number: SW40 AD 1/4 - 01530016
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3/8mm socket
Model Number: SW40 AD 3/8 - 01530024
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3/16mm socket
Model Number: SW40 AD 3/16 - 01530012
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5/16mm socket
Model Number: SW40 AD 5/16 - 01530020
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5/32mm socket
Model Number: SW40 AD 5/32 - 01530010
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7/16mm socket
Model Number: SW40 AD 7/16 - 01530028
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7/32mm socket
Model Number: SW40 AD 7/32 - 01530014
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9/16mm socket
Model Number: SW40 AD 9/16 - 01530034
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9/32mm socket
Model Number: SW40 AD 9/32 - 01530018
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11/32mm socket
Model Number: SW40 AD 11/32 - 01530022
