A close-up image of a GEARWRENCH 3-inch impact socket (84645), with callouts pointing to "Manganese phosphate finish to resist corrosion," "High-visibility laser etched markings," "Off-corner loading reduces fastener rounding," and "Flex socket design for access," all on an orange and black background.
An isolated shot of the GEARWRENCH 3/8" drive 6-inch impact extension (84407) on a white background, showing its full length and markings.
An isolated shot of the GEARWRENCH 3/8" drive 3-inch impact extension (84406) on a white background, showing its full length and markings.
A close-up view of the GEARWRENCH 3/8" drive 3-inch impact extension (84406), highlighting its male and female drive ends and black oxide finish.
The GEARWRENCH 4-piece 3/8" drive impact extension set (84926N) displayed in its clear plastic packaging, showing the different lengths of extensions.
A collection of GEARWRENCH 3/8" drive impact extensions (3", 6", 10", 15") and a universal joint, arranged on a concrete floor next to a rusty brake rotor and a yellow GEARWRENCH tool cart base.
A GEARWRENCH 3/8" drive 6-inch impact extension bar (84407) connected to a socket, actively loosening a bolt on a rusty automotive pulley system.
An orange and black graphic illustrating "HIGH VISIBILITY MARKING" with a magnifying glass over an orange background, and text "FOR EASY IDENTIFICATION" at the bottom.
An orange and black graphic illustrating "CHROME MOLYBDENUM" with chemical symbols "CR" and "MO" in hexagons, and text "STRENGTH AND DURABILITY" at the bottom.
An orange and black graphic illustrating "MANGANESE PHOSPHATE COATING" with water droplets bouncing off a curved surface, and text "FOR CORROSION RESISTANCE" at the bottom.
A close-up image of a GEARWRENCH 3-inch impact socket (84645), with callouts pointing to "Manganese phosphate finish to resist corrosion," "High-visibility laser etched markings," "Off-corner loading reduces fastener rounding," and "Flex socket design for access," all on an orange and black background.
An isolated shot of the GEARWRENCH 3/8" drive 6-inch impact extension (84407) on a white background, showing its full length and markings.
An isolated shot of the GEARWRENCH 3/8" drive 3-inch impact extension (84406) on a white background, showing its full length and markings.
A close-up view of the GEARWRENCH 3/8" drive 3-inch impact extension (84406), highlighting its male and female drive ends and black oxide finish.
The GEARWRENCH 4-piece 3/8" drive impact extension set (84926N) displayed in its clear plastic packaging, showing the different lengths of extensions.
A collection of GEARWRENCH 3/8" drive impact extensions (3", 6", 10", 15") and a universal joint, arranged on a concrete floor next to a rusty brake rotor and a yellow GEARWRENCH tool cart base.
A GEARWRENCH 3/8" drive 6-inch impact extension bar (84407) connected to a socket, actively loosening a bolt on a rusty automotive pulley system.
An orange and black graphic illustrating "HIGH VISIBILITY MARKING" with a magnifying glass over an orange background, and text "FOR EASY IDENTIFICATION" at the bottom.
An orange and black graphic illustrating "CHROME MOLYBDENUM" with chemical symbols "CR" and "MO" in hexagons, and text "STRENGTH AND DURABILITY" at the bottom.
An orange and black graphic illustrating "MANGANESE PHOSPHATE COATING" with water droplets bouncing off a curved surface, and text "FOR CORROSION RESISTANCE" at the bottom.
GEARWRENCH

GearWrench Impact Extension Set 84926N 3/8 Inch Drive (4 Piece 3 6 10 15 In Reach Cr-Mo Steel Manganese Phosphate Mechanics Storage Tray)

Only 2 left
SKU: 84926N
$39.95 USD

Description

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GearWrench 84926N 4-Piece 3/8" Drive Impact Extension Set

The GearWrench 84926N 4-piece 3/8-inch drive impact extension set extends tool reach across recessed, obstructed fasteners with intermediate lengths of 3 in, 6 in, 10 in, and 15 in. Drop-forged from high-strength chrome molybdenum (Cr-Mo) alloy steel and finished in corrosion-resistant manganese phosphate, these impact-rated drive bars withstand the continuous concussive blows of pneumatic and cordless impact guns. Featuring a standardized retention pin-hole and ball detent drive tang, dual laser-etched and hard-stamped size markings, and a durable storage organizer tray, this 2.57-lb collection delivers high-torque energy transfer for automotive chassis repair, engine tear-downs, and industrial equipment servicing.

Best Used For:

  • Automotive Drivetrain and Transmission Repair: Reaching deep bellhousing bolts, starter mounts, and crossmember hardware through crowded undercarriage bays using 10-inch and 15-inch extension shafts.
  • Chassis Suspension and Brake Servicing: Delivering high-torque breakaway power to recessed strut tower nuts and control arm fasteners past suspension coils and brake lines.
  • Industrial Machinery Maintenance: Accessing deep-set motor mounting bolts and pump assembly flanges enclosed within restrictive mechanical frames.

Key Performance & Safety Features

  • Impact-Grade Chrome Molybdenum Steel: Drop-forged Cr-Mo alloy core flexes elastically under shock loads to resist torsional shearing and head fracture.
  • Manganese Phosphate Corrosion Barrier: Chemical conversion finish resists motor oils, hydraulic fluids, brake cleaners, and atmospheric corrosion.
  • Positive Pin-Hole Retention: Drive tang includes a cross-drilled pin hole compatible with retaining pins and friction rings to prevent accidental socket drop-off.
  • Dual High-Visibility Identification: Features large laser-etched size callouts backed by permanent roll-stamped impressions that stay readable through years of heavy grease exposure.
  • Extended 15-Inch Reach Capability: Bridges deep engine bays and high-clearance frame rails without stacking multiple shorter extensions together.
  • Custom Modular Storage Tray: Heavy-duty molded organizer tray keeps extensions sorted and prevents rolling inside tool chest drawers.

What's Included

  • (1) 3/8" Drive 3" Impact Extension Bar
  • (1) 3/8" Drive 6" Impact Extension Bar
  • (1) 3/8" Drive 10" Impact Extension Bar
  • (1) 3/8" Drive 15" Impact Extension Bar
  • (1) Molded Plastic Storage Organization Tray

Technical Specifications

Manufacturer GearWrench (Apex Tool Group)
Model Number 84926N
Product Category Impact Drive Extension Bar Set
Total Piece Count 4 Drive Extensions + 1 Tray (5 Pieces Total)
Drive Tang Size 3/8 Inch (0.375 in / 9.525 mm) Square Drive
Included Lengths (SAE / Metric) 3.0" (76.2 mm), 6.0" (152.4 mm), 10.0" (254.0 mm), 15.0" (381.0 mm)
Material Composition Drop-Forged Chrome Molybdenum (Cr-Mo) Alloy Steel
Protective Finish Industrial Manganese Phosphate Coating
Socket Retention Mechanism Cross-Drilled Pin Hole and Ball Detent
Total Set Weight 2.57 lbs (1.17 kg)
Manufacturing Compliance Meets or Exceeds ASME B107.110 Standards
UPC / Barcode Identification 099575892660

Pro-Tip: Secure your 3/8-inch impact socket with a locking pin and rubber O-ring through the drilled pin hole when servicing suspension bolts overhead; this ensures the socket cannot vibrate off during high-RPM impact runs.