Open hard-shell carrying case displaying the Klein 66070 7-piece impact set with five color-coded flip sockets and two nested drive adapters.
Diagram detailing the 10 SAE socket sizes, 6-point 4140 steel construction, and 1/4-inch hex to 1/2-inch square drive conversion capability.
Electrician holding a 1/4-inch impact driver fitted with a 7/8 by 15/16-inch Klein flip socket to demonstrate overhead fastening.
Technician reversing a 3/4 by 13/16-inch Klein flip socket on a 1/2-inch impact wrench anvil for fast size changes.
Klein 66070 7-piece flip socket set resting in its molded storage case on a concrete jobsite floor.
Gloved worker holding the closed molded carrying case containing the complete Klein 66070 impact flip socket set.
Close-up of a worker swapping socket ends on a Klein 1/2-inch impact wrench to transition between 3/4 and 13/16-inch hardware.
Lineman operating a cordless impact wrench fitted with the 7/8 by 15/16-inch Klein flip socket on outdoor utility hardware.
Five color-coded Klein flip sockets and two drive adapters lined up on a work surface in front of a cordless impact driver.
Technician driving a 1/2-inch flange bolt into industrial equipment using a Klein flip socket mounted on a cordless impact driver.
Technician driving a heavy foundation anchor nut using a 15/16-inch Klein flip socket mounted on a 1/2-inch power impact wrench.
Electrician aligning a green color-coded 3/4 by 13/16-inch Klein flip socket on an impact driver to fasten industrial structural bolts.
Worker swapping socket ends on a 1/4-inch hex impact driver chuck to quickly engage a 5/8-inch bolt head.
7-Piece Flip Impact Socket Set (66070) promotional video
Open hard-shell carrying case displaying the Klein 66070 7-piece impact set with five color-coded flip sockets and two nested drive adapters.
Diagram detailing the 10 SAE socket sizes, 6-point 4140 steel construction, and 1/4-inch hex to 1/2-inch square drive conversion capability.
Electrician holding a 1/4-inch impact driver fitted with a 7/8 by 15/16-inch Klein flip socket to demonstrate overhead fastening.
Technician reversing a 3/4 by 13/16-inch Klein flip socket on a 1/2-inch impact wrench anvil for fast size changes.
Klein 66070 7-piece flip socket set resting in its molded storage case on a concrete jobsite floor.
Gloved worker holding the closed molded carrying case containing the complete Klein 66070 impact flip socket set.
Close-up of a worker swapping socket ends on a Klein 1/2-inch impact wrench to transition between 3/4 and 13/16-inch hardware.
Lineman operating a cordless impact wrench fitted with the 7/8 by 15/16-inch Klein flip socket on outdoor utility hardware.
Five color-coded Klein flip sockets and two drive adapters lined up on a work surface in front of a cordless impact driver.
Technician driving a 1/2-inch flange bolt into industrial equipment using a Klein flip socket mounted on a cordless impact driver.
Technician driving a heavy foundation anchor nut using a 15/16-inch Klein flip socket mounted on a 1/2-inch power impact wrench.
Electrician aligning a green color-coded 3/4 by 13/16-inch Klein flip socket on an impact driver to fasten industrial structural bolts.
Worker swapping socket ends on a 1/4-inch hex impact driver chuck to quickly engage a 5/8-inch bolt head.
7-Piece Flip Impact Socket Set (66070) promotional video
KLEIN TOOLS

Klein Tools Flip Impact Socket Set 66070 7 Piece 10 Sizes (1/4 Hex 1/2 Square Drive 4140 Steel 6 Point Hardware Installation Kit)

Only 2 left
SKU: 66070
$51.96 USD

Description

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Klein Tools 66070 7-Piece Reversible Impact Flip Socket Set with Nested Drive Adapters

The Klein Tools 66070 7-Piece Impact Flip Socket Set combines ten standard SAE fastener sizes into five dual-ended sockets and two nested dual-drive adapters for high-torque mechanical driving. Forged from heavy-duty heat-treated 4140 alloy steel, this 2.9 lb kit features a 6-point geometry design engineered to maximize contact area across hardware heads and resist rounding under power impact loads. Operating with both 1/4 inch power hex shanks and 1/2 inch square drive anvils, this versatile socket system allows commercial electricians, utility linemen, and HVAC technicians to quickly flip socket ends across ten hex sizes ranging from 3/8 inch to 15/16 inch while storing neatly inside a protective carrying case.

Best Used For:

  • Multi-Size Overhead Fastening: Rapidly driving trapeze channel nuts, strut brackets, and heavy junction box hardware without changing socket drive extensions.
  • Dual-Drive Power Tool Adaptation: Operating on 1/4 inch hex impact drivers or 1/2 inch square drive impact wrenches using the nested dual-drive adapter assembly.
  • Pole-Line & Electrical Utility Bolting: Securing heavy mounting plates and ground hardware utilizing 6-point 4140 alloy steel sockets designed for severe impact torque.

Key Performance & Safety Features

  • 10-in-5 Reversible Flip Architecture: Five dual-ended socket bodies consolidate ten standard SAE sizes into a compact payload to minimize jobsite tool weight.
  • Patent-Pending Nested Dual-Drive Adapters: Dual adapter system provides seamless connectivity with both 1/4 inch power hex driver chucks and 1/2 inch square drive anvils.
  • High-Torque 4140 Alloy Steel Forging: Premium heat-treated steel construction absorbs extreme impact shock loads without cracking or rounding socket walls.
  • 6-Point Precision Socket Geometry: Delivers maximum contact torque over hex bolt flats to prevent fastener stripping during high-RPM driving.
  • Cross-Hole Retention Locking System: Engineered cross-hole alignment prevents accidental socket separation from adapter detent pins under heavy vibration.
  • High-Contrast Color-Coded Bands: Distinctive visual color rings enable quick socket size identification inside dark work areas or tool bags.

What's Included

  • (1) 3/8-Inch x 7/16-Inch Reversible Flip Impact Socket
  • (1) 1/2-Inch x 9/16-Inch Reversible Flip Impact Socket
  • (1) 5/8-Inch x 11/16-Inch Reversible Flip Impact Socket
  • (1) 3/4-Inch x 13/16-Inch Reversible Flip Impact Socket
  • (1) 7/8-Inch x 15/16-Inch Reversible Flip Impact Socket
  • (2) Nested Dual-Drive Adapters (1/4-Inch Power Hex Shank & 1/2-Inch Square Drive)
  • (1) Hard-Shell Storage Carrying Case

Technical Specifications

Brand Manufacturer Klein Tools®
Model Part Number OEM SKU 66070
Tool Classification System 7-Piece Reversible Flip Impact Socket Set
Core Metallurgy Material Forged Heat-Treated 4140 Alloy Steel
Input Drive Interface Sizes 1/4 inch Quick-Connect Power Hex Shank & 1/2 inch Square Drive
Socket Size Range (SAE) 3/8 x 7/16'', 1/2 x 9/16'', 5/8 x 11/16'', 3/4 x 13/16'', 7/8 x 15/16''
Socket Point Profile Geometry 6-Point Deep Well Profile
Fastener Safety Retention Cross-Hole Adapter Locking Alignment
Power Driver Compatibility 1/4 inch Impact Drivers (BAT20CD) & 1/2 inch Impact Wrenches (BAT20CW)
Overall Carrying Case Dimensions 8.25 inches L x 4.9 inches W x 2.8 inches H (21.0 x 12.4 x 7.1 cm)
High-Voltage Insulated Frame No (Uninsulated - do not use on energized electrical circuits)
Total Piece Count 7 Pieces (5 Sockets + 2 Adapters + Case)
Assembled Net Weight 2.9 lb (1.3 kg)
Global Trade Item Number GTIN 00092644382130

Pro-Tip: Always align the cross-hole on the flip socket with the detent pin on the nested adapter when changing sizes. Fully engaging the locking detent prevents the socket from dropping off when driving heavy lag bolts overhead or working over open conduit trenches.