Klein 68216 2-piece 4-in-1 ratcheting box wrench set showing double-ended heads covering eight SAE hex sizes from 1/4 to 3/4-inch.
Diagram mapping the 8 SAE drive sizes across two double-ended wrenches: 1/4x5/16 and 3/8x7/16 on tool one, 1/2x9/16 and 5/8x3/4 on tool two.
Diagram detailing the 2-in-1 nested box socket design where two distinct SAE hex sizes are built into a single wrench opening.
Diagram demonstrating the 90-tooth ratcheting gear with a 4-degree arc swing that delivers 20 percent better swing efficiency in tight spots.
Close-up of the integrated thumb-reversing switch on the box head used to flip ratcheting direction without removing wrench from hardware.
Close-up of a ratcheting box end running a nut down an all-thread rod to illustrate hollow pass-through depth clearance.
Klein 68216 4-in-1 black phosphate ratcheting box wrenches showing I-beam handle construction and color-coded size markings.
Klein 68216 2-piece 4-in-1 ratcheting box wrench set showing double-ended heads covering eight SAE hex sizes from 1/4 to 3/4-inch.
Diagram mapping the 8 SAE drive sizes across two double-ended wrenches: 1/4x5/16 and 3/8x7/16 on tool one, 1/2x9/16 and 5/8x3/4 on tool two.
Diagram detailing the 2-in-1 nested box socket design where two distinct SAE hex sizes are built into a single wrench opening.
Diagram demonstrating the 90-tooth ratcheting gear with a 4-degree arc swing that delivers 20 percent better swing efficiency in tight spots.
Close-up of the integrated thumb-reversing switch on the box head used to flip ratcheting direction without removing wrench from hardware.
Close-up of a ratcheting box end running a nut down an all-thread rod to illustrate hollow pass-through depth clearance.
Klein 68216 4-in-1 black phosphate ratcheting box wrenches showing I-beam handle construction and color-coded size markings.
KLEIN TOOLS

Klein Tools Ratcheting Box Wrench Set 68216 2 Piece 4 in 1 SAE (90 Tooth Black Phosphate Steel 4 Degree Arc Swing Kit)

Only 2 left
SKU: 68216
$44.98 USD

Description

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Klein Tools 68216 2-Piece 4-in-1 SAE 90-Tooth Ratcheting Box Wrench Set

The Klein Tools 68216 4-in-1 Ratcheting Box Wrench Set packs eight imperial hex driving dimensions into two double-ended ratcheting wrenches for high-efficiency mechanical fastening. Forged from high-strength steel alloy with a protective black phosphate finish, this 14.2 oz (0.89 lb) uninsulated tool kit features a 90-tooth ratcheting gear mechanism that operates within a narrow 4-degree arc swing for low-clearance tasks. Engineered with dual-ended 12-point box openings, individual end-reversing switches, and hollow pass-through socket clearance, this compact wrench pair enables electrical contractors, HVAC mechanics, and industrial service crews to execute rapid nut driving over extended threaded rods in congested workspaces.

Best Used For:

  • Overhead Threaded Rod & Unistrut Installation: Driving hex nuts up long all-thread studs using hollow pass-through box end architecture without hitting socket depth limits.
  • Electrical Cabinet & Junction Box Servicing: Fastening 1/4-inch through 3/4-inch SAE panel bolts and grounding lugs in tight spaces where standard wrench swing clearance is constrained.
  • HVAC Equipment & Motor Mount Maintenance: Flipping ratchet direction instantly via dual end switches to remove or tighten hardware inside crowded air handler bays.

Key Performance & Safety Features

  • 4-in-1 Dual Socket Architecture: Houses 8 total SAE drive sizes (1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 3/4") across two double-ended wrenches.
  • 90-Tooth Precision Gear Mechanism: Requires only a 4-degree minimal working arc swing to engage hardware in tight, low-clearance environments.
  • Integrated End-Reversing Switches: Convenient thumb switches on each socket end allow instant drive direction changes without removing the wrench from the fastener.
  • Hollow Pass-Through Box Design: Permits long threaded bolts and all-thread rods to pass entirely through the ratcheting head.
  • Ergonomic I-Beam Handles: Features recessed comfort gripping zones to reduce hand fatigue during extended or repetitive overhead turning.
  • Color-Coded Visual Size ID: High-visibility color bands provide immediate size identification on busy jobsites and inside tool bags.

What's Included

  • (1) Klein Tools 4-in-1 SAE Ratcheting Box Wrench (1/4" x 5/16" and 3/8" x 7/16" Hex Ends)
  • (1) Klein Tools 4-in-1 SAE Ratcheting Box Wrench (1/2" x 9/16" and 5/8" x 3/4" Hex Ends)

Technical Specifications

Brand Manufacturer Klein Tools®
Model Part Number OEM SKU 68216
Tool Classification System 2-Piece 4-in-1 SAE 90-Tooth Ratcheting Box Wrench Set
Core Metallurgy Material Forged Steel Alloy
Protective Outer Finish Corrosion-Resistant Black Phosphate Coating
Ratchet Gear Tooth Count 90 Teeth (4° Minimal Arc Swing)
Integrated SAE Wrench Sizes 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 3/4" Hex
Box End Point Profile 12-Point Double-Ended Box Profile
Wrench Handle Design Profile Ergonomic I-Beam Handle with Recessed Comfort Grip
Overall Unit Dimensions 9.35 inches L x 1.45 inches W x 0.81 inches H (23.7 x 3.7 x 2.1 cm)
High-Voltage Insulated Frame No (Uninsulated - do not use on energized electrical circuits)
Total Piece Count 2 Pieces
Assembled Net Package Weight 14.2 oz / 0.89 lb (403 g)
Global Trade Item Number GTIN 00092644680816

Pro-Tip: When running long overhead threaded rod hardware, use the thumb-reversing switch to adjust drive direction mid-task without removing the pass-through box head from the stud. This preserves alignment and eliminates lost momentum in tight ceiling cavities.