Socket Type Socket Type | Show |
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![]() | Square Drive Size Adapter |
Socket Type Socket Type | Hide |
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Individual/Set Individual/Set |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Specifications Met Specifications Met |
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![]() | Black |
Square Drive Size Adapters

Convert from one square drive size to another.
Chrome Plated | Black Oxide | ||||||
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Square Drive Size (Gender) | Material | Overall Lg. | Each | Overall Lg. | Each | ||
1/4" (Female) × 3/8" (Male) | Steel | 1" | 0000000 | 000000 | 1" | 00000000 | 00000 |
3/8" (Female) × 1/4" (Male) | Steel | 1 1/16" | 0000000 | 00000 | 1 1/8" | 00000000 | 0000 |
3/8" (Female) × 1/2" (Male) | Steel | 1 5/16" | 0000000 | 0000 | 1 5/16" | 00000000 | 00000 |
1/2" (Female) × 3/8" (Male) | Steel | 1 3/8" | 0000000 | 00000 | 5" | 00000000 | 00000 |
1/2" (Female) × 3/4" (Male) | Steel | 1 11/16" | 0000000 | 00000 | 1 15/16" | 00000000 | 0000 |
3/4" (Female) × 1/2" (Male) | Steel | 1 7/8" | 0000000 | 00000 | 2 5/16" | 0000000 | 00000 |
3/4" (Female) × 1" (Male) | Steel | 2 1/2" | 0000000 | 00000 | 2 1/2" | 0000000 | 00000 |
1" (Female) × 3/4" (Male) | Steel | 2 7/8" | 0000000 | 00000 | 3 1/16" | 0000000 | 00000 |
Convertible Square Drive Size Adapters

Push the square drive through the adapter to change size.
For technical drawings and 3-D models, click on a part number.
Square Drive Size (Gender) | Overall Lg. | Material | Each | |
1/2" (Female) × 3/8" (Male) 3/8" (Female) × 1/2" (Male) | 3 1/8" | Chrome-Plated Steel | 0000000 | 00000 |
Electrical-Insulating Square Drive Size Adapters

Insulated to protect against accidental contact with live electrical circuits, these adapters are tested to 1,000 volts to meet IEC 60900.
For technical drawings and 3-D models, click on a part number.
Impact Square Drive Size Adapters

Convert from one square drive size to another. These adapters are made to withstand the high torque and force of impact tools.
3/4", 1", and 1 1/2" square drive size extensions require a locking retainer. Use with an impact wrench that has a pin-style socket retainer, or use a socket retaining ring with tools that have a hole- or hole-and-ring style socket retainer.
For technical drawings and 3-D models, click on a part number.
Adapters | Retaining Rings | |||||||
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Square Drive Size (Gender) | Overall Lg. | Compatible Retaining Ring ID | Material | Finish | Each | Each | ||
1/4" (Female) × 3/8" (Male) | 1" | __ | Steel | __ | 0000000 | 000000 | 000000 | 00 |
3/8" (Female) × 1/4" (Male) | 1 1/4" | __ | Steel | __ | 0000000 | 00000 | 000000 | 00 |
3/8" (Female) × 1/2" (Male) | 1 1/4" | __ | Steel | Black Oxide | 0000000 | 0000 | 000000 | 00 |
1/2" (Female) × 3/8" (Male) | 1 1/2" | __ | Steel | Black Oxide | 0000000 | 00000 | 000000 | 00 |
1/2" (Female) × 5/8" (Male) | 1 1/2" | __ | Steel | Black Oil Coated | 0000000 | 00000 | 000000 | 00 |
1/2" (Female) × 3/4" (Male) | 1 29/32" | __ | Steel | Black Oxide | 00000000 | 00000 | 000000 | 00 |
5/8" (Female) × 1/2" (Male) | 1 7/8" | __ | Steel | Black Oxide | 00000000 | 00000 | 000000 | 00 |
5/8" (Female) × 3/4" (Male) | 2" | __ | Steel | Black Oxide | 00000000 | 00000 | 000000 | 00 |
3/4" (Female) × 1/2" (Male) | 2 1/8" | 1 1/4" | Steel | Black Oxide | 00000000 | 00000 | 0000000 | 00000 |
3/4" (Female) × 5/8" (Male) | 2" | 1 1/4" | Steel | Black Oil Coated | 00000000 | 00000 | 0000000 | 0000 |
3/4" (Female) × 1" (Male) | 2 1/2" | 1 7/16" | Steel | Black Oxide | 00000000 | 00000 | 0000000 | 0000 |
1" (Female) × 3/4" (Male) | 2 7/8" | 2" | Steel | Black Oxide | 0000000 | 00000 | 00000000 | 0000 |
1" (Female) × 1 1/2" (Male) | 3 3/8" | 2" | Steel | Black Oxide | 0000000 | 00000 | 00000000 | 0000 |
1 1/2" (Female) × 1" (Male) | 4 1/4" | 2 7/8" | Steel | Black Oxide | 0000000 | 000000 | 0000000 | 0000 |
Impact Magnetic Square Drive Size Adapters

A magnet holds the socket, making changes quicker. These adapters convert from one square-drive size to another. They are made to withstand the high torque and force of impact tools.
Adapter with 3/4" square drive requires a retaining ring on the female end for attachment to tools that have a hole- or hole-and-ring style socket retainer.
For technical drawings and 3-D models, click on a part number.
Square Drive Size Adapter Sets
Convert from one square drive size to another.
Flex adapters pivot to access fasteners from an angle.
For technical drawings and 3-D models, click on a part number.

No. of Pieces | Includes | Material | Finish | Each | |
6 | Manual-Drive Chrome-Plated Square Drive Size Adapter—1/4" Female × 3/8" Male Manual-Drive Chrome-Plated Square Drive Size Adapter—3/8" Female × 1/4" Male Manual-Drive Chrome-Plated Square Drive Size Adapter—3/8" Female × 1/2" Male Manual-Drive Chrome-Plated Square Drive Size Adapter—1/2" Female × 3/8" Male Manual-Drive Chrome-Plated Square Drive Size Adapter—1/2" Female × 3/4" Male Manual-Drive Chrome-Plated Square Drive Size Adapter—3/4" Female × 1/2" Male | Steel | Chrome Plated | 00000000 | 000000 |

No. of Pieces | Includes | Material | Finish | Each | |
10 | Manual-Drive Chrome-Plated Square Drive Size Adapter—1/4" Female × 3/8" Male Manual-Drive Chrome-Plated Square Drive Size Adapter—3/8" Female × 1/4" Male Manual-Drive Chrome-Plated Square Drive Size Adapter—3/8" Female × 1/2" Male Manual-Drive Chrome-Plated Square Drive Size Adapter—1/2" Female × 3/8" Male Manual-Drive Chrome-Plated Square Drive Size Adapter—1/2" Female × 3/4" Male Manual-Drive Chrome-Plated Flex Adapter—1/4" Female × 1/4" Male Manual-Drive Chrome-Plated Flex Adapter—3/8" Female × 3/8" Male Impact-Drive Black Flex Adapter—1/4" Female × 1/4" Male Impact-Drive Black Flex Adapter—3/8" Female × 3/8" Male Impact-Drive Black Flex Adapter—1/2" Female × 1/2" Male | Steel | Black Oxide | 00000000 | 0000000 |
Impact Square Drive Size Adapter Sets
Convert from one square drive size to another. These adapters are made to withstand the high torque and force of impact tools.
Flex adapters pivot to access fasteners from an angle.
For technical drawings and 3-D models, click on a part number.

No. of Pieces | Includes | Material | Finish | Each | |
3/8", 1/2", 3/4", 1" Square Drive | |||||
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6 | 3/8" Female × 1/2" Male Square Drive Size Adapter 1/2" Female × 3/8" Male Square Drive Size Adapter 1/2" Female × 3/4" Male Square Drive Size Adapter 3/4" Female × 1/2" Male Square Drive Size Adapter 3/4" Female × 1" Male Square Drive Size Adapter 1" Female × 3/4" Male Square Drive Size Adapter | Steel | Black Oxide | 00000000 | 0000000 |

No. of Pieces | Includes | Material | Finish | Each | |
1/4", 3/8", 1/2", 3/4" Square Drive | |||||
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7 | 3/8" Female × 1/2" Male Square Drive Size Adapter 1/2" Female × 3/8" Male Square Drive Size Adapter 1/2" Female × 3/4" Male Square Drive Size Adapter 3/4" Female × 1/2" Male Square Drive Size Adapter 1/4" Female × 1/4" Male Flex Adapter 3/8" Female × 3/8" Male Flex Adapter 1/2" Female × 1/2" Male Flex Adapter | Steel | Black Oxide | 00000000 | 0000000 |