Klein 2-in-1 Impact Socket, 6-Point, 7/8 and 11/16-in. (66064)
Klein 2-in-1 Impact Socket, 6-Point, 7/8 and 11/16-in. (66064)
Out of Stock - Available to Order - Usually ships in 15-20 days
Product Details
Product Details
Key Features
Overview
The Klein 2-in-1 Impact Socket, 6-Point, 7/8 and 11/16-in. (66064) is a single-ended impact socket designed for installing and removing pole hardware and for general electrical and construction work.
It is a deep, 1/2-in. drive socket with two coaxial, spring-loaded hex sizes, 7/8 in. and 11/16 in., that you switch between hands-free. A cross-hole design keeps the adapter and socket from separating unintentionally, and the socket is color-coded for size ID.
It is made of 4140 steel, measures 3 in. (76 mm) long and weighs 8.8 oz. (249 g). It is designed for impact wrenches, including Klein's 1/2-in. Compact Impact Wrench.
On the Job

Deep enough for pole hardware and built for impact wrenches.
- 1/2-in. drive deep socket
- Impact rated
Two Sizes, Zero Swaps

Flip between sizes and keep working.
- 7/8 x 11/16 in.
- Cross-hole design
Key Specifications
| Drive Size | 1/2 in. |
|---|---|
| Socket Sizes | 7/8 x 11/16 in. |
| Number of Points | 6 |
| Material | 4140 Steel |
| Standard | ASME B107.2 |
| Overall Length | 3 in. (76 mm) |
| Weight | 8.8 oz. (249 g) |
Built For
Tool Nut's Take
Two Common Sizes, One Socket
The Klein 66064 handles the 7/8 and 11/16-in. pair with no tool changes.
- Who it's for: Electrical and construction crews with an impact wrench.
- Why it stands out: Hands-free size changes and a 6-point grip.
- Worth knowing: It covers one size pair. Other pairs are separate sockets.

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