Klein 65213HEX 13-piece SAE knurled hex bit socket set arranged inside an open MODbox organizer case with a clear lid.
Diagram detailing 13 SAE hex bit sockets divided across 1/4, 3/8, and 1/2-inch drive sizes ranging from 5/64 to 9/16 inch.
Diagram highlighting Klein S2 alloy steel bits with black phosphate finish, chrome CRV sockets, and stamped size markings.
Macro view of the knurled socket base ring designed to give technicians positive finger grip for hand-starting threaded fasteners.
Klein MODbox organizer cases stacked together, illustrating how transparent lids open independently without unstacking the boxes.
Klein MODbox hex bit socket case mounted vertically onto the side rail of a main MODbox rolling toolbox for mobile jobsite access.
Electrician using a ratchet with a Klein hex bit socket to tighten a copper terminal lug bolt inside an electrical breaker panel.
Mechanic using a pass-through ratchet and Klein knurled hex bit socket to turn a flush fastener in a tight automotive engine space.
Klein 65213HEX set open on a jobsite workbench alongside a Cushion-Grip handle and pass-through wrench for flexible driving options.
Klein 65213HEX 13-piece SAE knurled hex bit socket set arranged inside an open MODbox organizer case with a clear lid.
Diagram detailing 13 SAE hex bit sockets divided across 1/4, 3/8, and 1/2-inch drive sizes ranging from 5/64 to 9/16 inch.
Diagram highlighting Klein S2 alloy steel bits with black phosphate finish, chrome CRV sockets, and stamped size markings.
Macro view of the knurled socket base ring designed to give technicians positive finger grip for hand-starting threaded fasteners.
Klein MODbox organizer cases stacked together, illustrating how transparent lids open independently without unstacking the boxes.
Klein MODbox hex bit socket case mounted vertically onto the side rail of a main MODbox rolling toolbox for mobile jobsite access.
Electrician using a ratchet with a Klein hex bit socket to tighten a copper terminal lug bolt inside an electrical breaker panel.
Mechanic using a pass-through ratchet and Klein knurled hex bit socket to turn a flush fastener in a tight automotive engine space.
Klein 65213HEX set open on a jobsite workbench alongside a Cushion-Grip handle and pass-through wrench for flexible driving options.
KLEIN TOOLS

Klein Tools Hex Bit Socket Set 65213HEX 13 Piece SAE Knurled (5/64 to 9/16 In 1/4 3/8 1/2 In Drive MODbox Clear Case Mechanical Driving Kit)

Only 2 left
SKU: 65213HEX
$29.98 USD

Description

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Klein Tools 65213HEX 13-Piece SAE Knurled Hex Bit Socket Set

The Klein Tools 65213HEX 13-Piece Knurled Hex Bit Socket Set operates as a precision mechanical driving system engineered to install and remove internal hex-head fasteners across commercial electrical and machinery assemblies. Weighing 1.42 lbs. and organized inside a MODbox-compatible storage case measuring 7 in. L x 3-45/100 in. W x 1-63/100 in. H, this kit includes 13 SAE hex bit sockets spanning 5/64 in. to 9/16 in. sized across 1/4 in., 3/8 in., and 1/2 in. drive platforms. Constructed from forged chrome-vanadium steel with knurled base rings and black phosphate bit tips, this versatile set enables technicians to execute fingertip thread engagement before applying final torque with hand ratchets or torque wrenches.

Best Used For:

  • Internal Hex Fastener Installation: Torquing socket head cap screws and hex set screws from 5/64 in. up to 9/16 in. across electrical panel lugs and motor mounts.
  • Fingertip Fastener Threading: Utilizing precision knurled base bands to spin threaded fasteners down by hand prior to attaching ratchets in oil-slicked environments.
  • Multi-Drive Torque Application: Matching delicate low-torque work to 1/4 in. drive, general mechanical driving to 3/8 in. drive, and high-torque lug tightening to 1/2 in. drive sockets.

Key Performance & Safety Features

  • Knurled Socket Base Collar: Raised perimeter knurling provides positive tactile grip to quickly start fasteners by hand without slippage.
  • Progressive Drive Size Scaling: Features 1/4 in. drive for low torque (5/64 in.-1/4 in.), 3/8 in. drive for general driving (9/32 in.-3/8 in.), and 1/2 in. drive for high torque (7/16 in.-9/16 in.).
  • Forged Chrome-Vanadium Steel: Premium alloy steel bodies paired with black phosphate heat-treated steel bits resist rounding and corrosion under load.
  • High-Visibility Stamped Size Callouts: Bold, permanent size markings stamped directly into socket walls ensure instant identification.
  • Spring-Loaded MODbox Organizer Case: Heavy-duty transparent lid case features a one-handed spring-loaded latch and an embedded small parts tray for loose hardware.

What's Included

  • (7) 1/4 in. Drive SAE Hex Bit Sockets (5/64, 3/32, 1/8, 5/32, 3/16, 7/32, 1/4 in.)
  • (3) 3/8 in. Drive SAE Hex Bit Sockets (9/32, 5/16, 3/8 in.)
  • (3) 1/2 in. Drive SAE Hex Bit Sockets (7/16, 1/2, 9/16 in.)
  • (1) MODbox™ Compatible Clear-Lid Compact Storage Case with Parts Tray

Technical Specifications

Brand Manufacturer Klein Tools®
Model Part Number OEM SKU 65213HEX
Tool Set Classification Type 13-Piece SAE Knurled Hex Bit Socket Set
System Compatibility Platform Klein MODbox™ Modular Storage Rails & Standard Ratchets
Primary Drive Anvil Interfaces 1/4 in., 3/8 in., and 1/2 in. Square Drive
Included SAE Hex Size Range 5/64 in., 3/32 in., 1/8 in., 5/32 in., 3/16 in., 7/32 in., 1/4 in., 9/32 in., 5/16 in., 3/8 in., 7/16 in., 1/2 in., 9/16 in.
Fastener Engagement Profile 6-Point Internal Hex (Allen) Drive
Socket Base Grip Mechanism Tactile Outer Base Ring Knurling
Core Metallurgy Materials Forged Chrome-Vanadium Steel Body with Steel Bit
Surface Protective Coatings Polished Chrome Body with Black Phosphate Bit Tip
High-Voltage Insulated Frame No (Uninsulated - do not use on energized electrical circuits)
Total Piece Count in Kit 13 Pieces
Storage Case Overall Dimensions 7 in. L x 3-45/100 in. W x 1-63/100 in. H (17.8 x 8.8 x 4.1 cm)
Assembled Net Package Weight 1.42 lbs. (0.6 kg)
Global Trade Item Number GTIN 00092644380327

Pro-Tip: When installing delicate terminal lugs or machinery set screws in tight electrical enclosures, detach your ratchet and use the knurled socket base between your thumb and forefinger. Pre-threading the hex bit by hand ensures clean thread engagement and prevents cross-threading before applying final torque with a torque wrench.