Klein Tools - 6-in-1 Square Impact Socket, NRHD4

Klein Tools NRHD4 6-in-1 Square Impact Socket

The Klein Tools NRHD4 6-in-1 Square Impact Socket delivers versatile fastening power in a single tool for electricians, utility linemen, and contractors tackling pole-mounted equipment. Two coaxial spring-loaded sockets let you switch between four square sizes — 3/4", 13/16", 1", and 1-1/8" — without tools, just adjust by hand. The included 7/16" hex quick-change adapter expands compatibility across 1/2", 5/8", and 3/4" pole hardware. The hollow 13/16" diameter shaft stretches 6 inches long for deep-set or long threaded bolts. Replacement adapters are available separately.

Key Features

• Two coaxial spring-loaded sockets — switch between 3/4", 13/16", 1", and 1-1/8" square sizes by hand, no tools required
• Included 7/16" hex quick-change adapter expands compatibility across 1/2", 5/8", and 3/4" pole hardware
• 6-inch hollow 13/16" diameter shaft for deep-set or long threaded bolts
• Alignment slot simplifies tightening and loosening of pole hardware
• Cross-hole design keeps adapter and socket securely connected during use
• Color-coded double lines for fast, easy size identification on the job
• Built for impact drivers — engineered for demanding utility and pole hardware fastening
• Replacement adapters available separately to keep your toolkit ready

Specifications

• Part Number: NRHD4
• Type: 6-in-1 square impact socket
• Socket Sizes: 3/4", 13/16", 1", 1-1/8" (square)
• Adapter: 7/16" hex quick-change (included)
• Adapter Compatibility: 1/2", 5/8", 3/4" pole hardware
• Shaft: Hollow, 13/16" diameter, 6" length
• Socket Mechanism: Two coaxial spring-loaded sockets (tool-free adjustment)
• Identification: Color-coded double lines
• Retention: Cross-hole design
• Alignment: Alignment slot for pole hardware
• Application: Pole-mounted equipment fastening for electricians, utility linemen, and contractors
• Vendor: Klein Tools

Ideal Applications

• Pole hardware fastening requiring four square socket sizes (3/4"–1-1/8") and 1/2"–3/4" adapter compatibility in a single 6-in-1 impact socket
• Deep-set or long threaded bolt applications requiring a 6-inch hollow shaft impact socket for pole-mounted equipment
• Any utility lineman or electrician application requiring a Klein Tools 6-in-1 square impact socket with tool-free size adjustment for impact drivers

Part Number: NRHD4 | Vendor: Klein Tools | Sizes: 3/4", 13/16", 1", 1-1/8" | Adapter: 7/16" Hex (1/2", 5/8", 3/4" pole hardware) | Shaft: 6" Hollow