Klein Tools 656QS KNECT Quad-24 9-piece impact flip socket set organized in an orange MODbox accessory case featuring 6 color-coded sockets and 3 adapters.
Detailed view of a single Klein Tools 4-in-1 impact flip socket showing color-coded rings, deep-well design, and laser-etched size markings for 1/4, 3/8, 7/16, and 5/16-inch.
Infographic demonstrating the quick access spring-loaded mechanism of the Quad-24 socket where applying pressure allows a user to switch between small and large hex sizes hands-free.
Breakdown of the Quad-24 9-piece set contents including 6 sockets covering 24 different SAE and metric sizes, 3.5-inch and 6.5-inch impact extensions, and a KNECT system multi-purpose adapter.
Demonstration of the efficiency of the KNECT system showing multiple color-coded impact flip sockets stored on a single 1/4-inch hex flip socket impact shaft for rapid size changes.
The Klein Tools color-coded impact flip socket mounted on a heavy-duty impact driver, highlighting the impact-rated durability of the cold-forged steel fastening tool.
How A Quad Socket Works (651QS, 652QS, 653QS, 654QS and 656QS) promotional video
Klein Tools 656QS KNECT Quad-24 9-piece impact flip socket set organized in an orange MODbox accessory case featuring 6 color-coded sockets and 3 adapters.
Detailed view of a single Klein Tools 4-in-1 impact flip socket showing color-coded rings, deep-well design, and laser-etched size markings for 1/4, 3/8, 7/16, and 5/16-inch.
Infographic demonstrating the quick access spring-loaded mechanism of the Quad-24 socket where applying pressure allows a user to switch between small and large hex sizes hands-free.
Breakdown of the Quad-24 9-piece set contents including 6 sockets covering 24 different SAE and metric sizes, 3.5-inch and 6.5-inch impact extensions, and a KNECT system multi-purpose adapter.
Demonstration of the efficiency of the KNECT system showing multiple color-coded impact flip sockets stored on a single 1/4-inch hex flip socket impact shaft for rapid size changes.
The Klein Tools color-coded impact flip socket mounted on a heavy-duty impact driver, highlighting the impact-rated durability of the cold-forged steel fastening tool.
How A Quad Socket Works (651QS, 652QS, 653QS, 654QS and 656QS) promotional video
KLEIN TOOLS

Klein Tools 656QS KNECT Quad-24 9-Piece Heavy-Duty Impact Flip Socket Set 24-in-1 SAE Metric Color Coded Deep Well Fastening Tools for Impact Drivers

In stock
SKU: 656QS
$99.98

Description

Unmatched Fastening Versatility: 24 Sizes in One Compact Impact-Rated Kit

The Klein Tools 656QS KNECT™ Quad-24 Heavy-Duty Impact Flip Socket Set is the ultimate solution for professionals seeking to maximize efficiency while minimizing tool bulk. This revolutionary 9-piece set condenses 24 essential SAE and Metric hex sizes into just six color-coded, deep-well sockets. Featuring a proprietary spring-loaded mechanism, these sockets allow for hands-free size transitions; simply apply pressure to the smaller socket to compress it, instantly exposing the secondary size without stopping your workflow. Whether you are managing extended threads, recessed bolts, or working in confined spaces, these deep-well sockets provide the reach and reliability required for the most demanding job sites.

Engineered for high-torque applications, every component in the Quad-24 set is manufactured from heat-treated, cold-forged steel to withstand the rigors of heavy-duty impact use. The industry-standard color-coded rings allow for rapid size identification at a glance, while the specialized Klein KNECT™ square drive adapter ensures seamless compatibility with pass-through socket wrenches, 3/8-inch square drive ratchets, and standard impact drivers. Designed for speed, the system allows users to store small and medium quad-sockets on the 1/4-inch shaft, providing instant access to eight different hex sizes in one hand-held setup. For organized portability, the entire set comes housed in a MODbox™ compatible accessory case.

Key Features

  • 24-in-1 Capability: Combines 24 hex sizes into 6 color-coded impact sockets for maximum convenience.
  • Spring-Loaded Action: Innovative design allows for hands-free access to dual hex sizes by compressing the smaller socket.
  • Industrial Strength: Manufactured from heat-treated, cold-forged steel to handle high-torque impact applications.
  • Deep Well Reach: Optimized for managing extended threads and recessed bolts in tight, confined spaces.
  • Rapid Identification: Features industry-standard color-coded painted rings for quick socket selection.
  • KNECT™ System Compatibility: Includes specialized adapters compatible with 3/8-inch square drive ratchets and pass-through wrenches.
  • MODbox™ Ready: Comes in a sleek accessory case designed for integration with the Klein Tools MODbox™ storage system.

What's Included

  • Small Quad-Socket (1/4" to 7/16" / 7mm to 12mm)
  • Medium Quad-Socket (1/2" to 11/16" / 9mm to 14mm)
  • Large Quad-Socket (3/4" to 1" / 15mm to 19mm)
  • 1/4" Hex Flip Socket Impact Shaft
  • KNECT™ (M) Square Drive Adapter
  • MODbox™ Accessory Case

Specifications

Tool Type Impact Socket Set
Application Driving and Fastening
Material Heat Treated Cold Forged Steel
Drive Size 1/4", 3/8"
Number of Points 6-Point
Socket Depth Deep Well
Overall Length 9.15"
Overall Height 1.8"
Overall Width 6.14"
Standard ASME B107.2
Number of Pieces 9
Total Weight 0.18 oz

Pro-Tip: When working with long-threaded bolts, always use the deep-well feature of the Quad-sockets to ensure the socket seats fully on the fastener. This prevents stripping and allows the high-torque steel to distribute force evenly across the hex flats for a cleaner, safer fasten.