SKU: 48165829767

Klein Tools 66055 5-Piece 2-in-1 Impact Flip Socket Set 12-Point Alloy Steel Hex Drive SAE Fastening Tools with Adapters and Storage Case for Linemen

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Description

Klein Tools 66055 5-Piece 2-in-1 Impact Flip Socket Set 12-Point Alloy Steel Hex Drive SAE Fastening Tools with Adapters and Storage Case for LinemenMaster Pole Hardware and Utility Work with the Ultimate No Spring Impact Flip Socket Set The Klein Tools 66055 2 in 1 Impact Flip Socket Set is engineered specifically for the high demand environment of power utility linemen and underground distribution professionals. Featuring a durable, no spring design, this set provides a direct flip mechanism that allows for seamless switching between fastener sizes without the risk of moving parts failing in the

Master Pole Hardware and Utility Work with the Ultimate No-Spring Impact Flip Socket Set

The Klein Tools 66055 2-in-1 Impact Flip Socket Set is engineered specifically for the high-demand environment of power utility linemen and underground distribution professionals. Featuring a durable, no-spring design, this set provides a direct-flip mechanism that allows for seamless switching between fastener sizes without the risk of moving parts failing in the field. The precision 12-point geometry ensures a secure, reliable grip on pole hardware, significantly reducing the risk of rounding off hex heads during high-torque installation or removal tasks. Forged from heavy-duty alloy steel and finished with a black phosphate coating, these sockets are built to withstand the rigors of heavy impact use in any weather condition.

Efficiency is paramount when working at height or in confined spaces, and this 5-piece flip socket set delivers by consolidating multiple tool sizes into a single, compact kit. The set includes bright, color-coded bands for instantaneous size identification, ensuring you never waste time searching for the right tool while on the job. With a versatile 3/8-inch drive compatibility across all sockets and a variety of included adapters for 1/4-inch hex and 1/2-square drives, this kit reduces your overall tool count while increasing your capabilities. Whether you are managing pole line construction or underground distribution maintenance, the Klein Tools 66055 delivers the professional-grade control and speed required to power through the toughest utility jobs with confidence.

Key Features

  • Efficient 2-in-1 Flip Design: Enables rapid socket size changes and significantly reduces the number of tools needed in your bag.
  • Lineman-Grade Durability: Features a robust no-spring mechanism and alloy steel construction for long-lasting performance in high-torque utility applications.
  • Precision 12-Point Geometry: Provides a superior, strong grip on nuts and bolts with less chance of rounding hardware compared to standard designs.
  • High-Visibility Identification: Bright color-coded bands allow for quick and easy socket size selection at a glance on the job site.
  • Black Phosphate Finish: Offers excellent rust and corrosion resistance for reliable use in outdoor and underground environments.
  • Impact Rated Performance: Specifically designed and rated for use with heavy-duty impact drivers and wrenches.

What's Included

  • (5) 2-in-1 Impact Flip Sockets
  • (2) 1/2-Inch Detent x 3/8-Inch Adapters
  • (2) 7/16-Inch Hex x 1/2-Inch Square Adapters
  • (1) Carrying Case

Specifications

Tool Type Impact-Rated Flip Socket Set
Primary Application Pole Hardware and Underground Distribution
Socket Sizes Included 1/2" x 5/8", 3/4" x 9/16", 7/8" x 11/16", 13/16" x 1", 15/16" x 1-1/8"
Drive Sizes 1/4" Hex, 1/2" Square
Socket Geometry 12-Point Precision
Material Alloy Steel
Finish Black Phosphate
Overall Length 8.24"
Overall Height 2.84"
Total Piece Count 10 (Sockets, Adapters, Case)
Compliance Standards ASME B107.17M / B107.4
Weight 5.6 lbs
UPC 092644653025

Pro-Tip: When using the flip sockets on older, weathered pole hardware, the 12-point geometry is specifically designed to maximize contact surface. Always ensure the socket is fully seated over the nut before engaging your impact tool to prevent rounding, especially on fasteners that have been weakened by exposure to the elements.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 48165829767

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Jonathan Helm
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★★★★★ 5
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Color: Dark Grey, Size: X-Large
I’m 6’4, 220lb with an athletic build. Great fit, good around the chest and sleeves and shirt are perfect length. Great shirt for work or a night out. Well made and comfortable! I’ll be ordering a few more colors without a doubt.
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Reviewed in the United States on May 28, 2026
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DSM
Pawtucket, US
★★★★★ 4
Nice shirts with inconsistent fit
Color: Light Grey, Size: X-Large
I received the black version of this as a gift which I really liked and I got a lot of compliments for it. So I purchased this light gray but it does not fit as well. It's a little tighter and a little shorter. I was hoping they all would be the same fit but apparently they are not.
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Reviewed in the United States on January 31, 2026
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Larry Newell
Los Angeles, US
★★★★★ 5
Great Shirts…I’ve Bought most Colors.
Color: White-red, Size: Large
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Reviewed in the United States on May 28, 2026
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PARRIS CHARGOIS
Charlottesville, US
★★★★★ 5
This shirt brings mens dress shirts to a new level. My husband wears it with slacks or jeans.
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Ron
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