







🔩 Double the size, double the power — one socket to rule your toolbox!
The Klein Tools 66004 2-in-1 Impact Socket combines two essential hex sizes (3/4" and 9/16") in a single, hands-free adjustable tool. Made from durable alloy steel with a 6-point high-torque design, it reduces fastener round-off and fits 1/2-inch drive impact tools. Ideal for professionals needing reliable, efficient hardware installation and removal, this deep socket is a must-have for any serious toolkit.






| Brand | KLEIN TOOLS |
| Item Length | 3.12 Inches |
| Material | Alloy Steel |
| Drive System | Hex |
| Finish Type | Unfinished |
| Number of Pieces | 1 |
| Drive Bit Shank Style | 1/2" Drive |
| UPC | 092644380051 |
| Global Trade Identification Number | 00092644380051 |
| Bit Compatibilities | 1/2-inch impact driver, 1/2-inch impact wrench |
| Manufacturer | Klein Tools |
| Part Number | 66004 |
| Item Weight | 8 ounces |
| Item model number | 66004 |
| Is Discontinued By Manufacturer | No |
| Style | 6-Point |
| Finish | Unfinished |
| Shape | round |
| Item Package Quantity | 1 |
| Measurement System | Metric |
| Compatible Fastener Range | 0.5 inch |
| Special Features | Hands-free Adjustment |
| Included Components | Impact Socket |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | 1 Year Manufacturer |
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