Klein KNECT Deep-Well 3/8-in. Drive Impact Socket Set, SAE and Metric, 23 Pieces (65121IMPCT)
Klein KNECT Deep-Well 3/8-in. Drive Impact Socket Set, SAE and Metric, 23 Pieces (65121IMPCT)
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Product Details
Product Details
Key Features
Overview
The Klein Tools KNECT Deep-Well 3/8-in. Drive Socket Set, SAE and Metric, 23 Pieces (65121IMPCT) combines deep-well, 6-point impact sockets in SAE and metric sizes with KNECT extensions and an adapter.
The wall is optimized for access to recessed fasteners and longer bolts. Sizes are stamped with high-contrast paint infill and color-coded rings. Sockets are Cr-Mo steel with a manganese phosphate finish. The 3 in. and 6 in. KNECT extensions work with a pass-through ratchet or screwdriver.
Key Specifications
| Drive Size | 3/8 in. |
|---|---|
| SAE Sizes | 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16 in. |
| Metric Sizes | 8, 10, 11, 12, 13, 14, 15, 16, 17, 19 mm |
| Socket Depth | Deep-well, 6-point |
| Dimensions (L x H x W) | 7-1/2 in. x 1-5/8 in. x 11-3/8 in. (191 mm x 41 mm x 289 mm) |
| Piece Count | 23 |
Tool Nut's Take
One case for both measuring systems
The Klein KNECT 23-piece impact set covers SAE and metric deep sizes.
- Who it's for: Techs who switch between SAE and metric fasteners.
- Why it stands out: Two extensions and an adapter alongside nine SAE and ten metric sizes.
- Worth knowing: Sized for impact drivers with 3/8 in. square drive.

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