JET 400424 1-Inch Drive Super-Heavy-Duty Composite Series Air Impact Wrench – 1,400 ft-lbs Reverse Torque – Lightweight Twin Hammer Gun (Model AW25CSD)

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SKU:
JET400424
UPC:
059629869819
MPN:
400424
Availability:
Ready to ship
Weight:
8.4000 LBS
On Sale
  • Jet 400424 1-inch drive Composite Series pneumatic impact wrench engineered for high-torque heavy-duty truck, fleet, and industrial maintenance applications.
  • Jet 400424 1-inch drive Composite Series pneumatic impact wrench engineered for high-torque heavy-duty truck, fleet, and industrial maintenance applications.
  • Jet 400424 1-inch drive Composite Series pneumatic impact wrench engineered for high-torque heavy-duty truck, fleet, and industrial maintenance applications.
  • Technician operating the Jet 400424 1-inch drive composite impact wrench on a heavy-duty truck suspension and wheel assembly.
MSRP: $841.47
Now: $642.98
Was: $841.47
— You save $198.49
  • ✔️ Ultra-Light Composite Frame: Weighs just 7.7 lbs—nearly 3X lighter than traditional aluminum 1-inch models. ✔️ 1,500 Ft-Lb Nut-Busting Power: Delivers immense reverse breakaway torque to clear rusted studs fast.
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Description

Jet 400424 1" Drive Composite Series Impact Wrench

Brute 1,400 ft-lbs Reverse Torque. Ultra-Lightweight 7.7 lb. Composite Body. Smooth Twin Hammer Delivery.

The Jet Composite Series Impact Wrench breaks the mold of heavy, bone-jarring industrial air tools by pairing extreme mechanical fastening force with elite, fatigue-fighting ergonomics. Purpose-built to thrive in the punishing environments of diesel mechanic bays, commercial tire centers, and heavy equipment repair shops, this 1-inch square drive tool unleashes an incredible 1,400 ft-lbs of nut-tightening torque in reverse. It provides structural steel technicians, millwrights, and fleet maintenance teams with the ruthless breakdown velocity needed to strip down rusted semi-truck lug nuts, stubborn tractor mounts, and seized industrial piping bolts instantly.

Uncompromising operator protection and balanced handling are core components of this JET Super-Heavy-Duty engineering milestone. The 400424 features an advanced, high-resistance composite body shell that drops the tool's total weight to a mere 7.7 lbs—making it nearly three times lighter than legacy aluminum-body 1-inch pneumatic guns. This massive weight reduction eliminates shoulder strain during overhead chassis runs while insulating the operator's hands from cold compressed air. Internally, a balanced twin-hammer mechanism punches through stubborn resistance with hard-hitting force, while smoothing out high-vibration chatter to safeguard user joints. Complete with a rear dial-type variable regulator, it offers 3 forward and 3 reverse speed settings for precision torque control.

Why the JET 400424 AW25CSD 1" Composite Impact Wrench Rules the Shop Bay:

  • Relentless Reverse Torque Power: Pumps out 1,400 ft-lbs of breakaway force to easily snap off heat-seized fasteners and heavy commercial fleet hardware.
  • Ultra-Lightweight Composite Architecture: Weighs only 7.7 lbs, delivering an industry-leading power-to-weight profile that minimizes arm fatigue.
  • Vibration-Dampening Twin Hammer: High-output internal hammer configuration balances every impact blow, minimizing physical shock feedback to the user.
  • One-Handed Dial Control: Rear-mounted speed switch allows the user to click between 3 forward and 3 reverse settings seamlessly with one hand.
  • Muffled Handle Exhaust Track: Redirects spent air and exhaust noise down through the bottom of the handle base, keeping the work zone clean and safe.

Specifications

Feature Specification
Model / Part Number 400424 (AW25CSD Series)
Brand JET® Tools (SureWerx Class)
Square Drive Size 1 Inch Standard Drive Anvil
Maximum Reverse Torque 1,400 ft-lbs (Nut-Busting Capacity)
Tool Weight 7.7 lbs (3.5 kg) / Ultra-Lightweight Matrix
Hammer Mechanism Style High-Balance Twin Hammer System
Speed Regulator Settings 3 Forward Speed Steps / 3 Reverse Speed Steps
Anvil Retention Style Secure Pin-Hole with Spring Clip Ring
Air Inlet Size / Thread 3/8 Inch NPT (1/2" Minimum Hose Internal Diameter Recommended)
Operating Pressure 90 PSI Standard Requirement
Handle Configuration High-Comfort Insulated Pistol Grip

Frequently Asked Questions

+ Is a composite body strong enough to handle drops on a concrete shop floor?
Yes, absolutely. JET utilizes a specialized, high-impact industrial composite formulation designed to withstand severe commercial abuse. It absorbs drop impacts on concrete without cracking, resists automotive fluid spills (like oil, brake cleaner, and diesel), and won't scratch or mar customer assemblies like raw metal housings do.
+ What size air compressor line and supply setup is required to run this 1" tool correctly?
To reach its full 1,400 ft-lbs output, this 1-inch impact gun requires a high volume of compressed air. You must use a minimum 1/2-inch internal diameter (ID) air supply hose connected to a 3/8" NPT fitting at 90 PSI. Running this tool on a restricted 3/8" air hose will starve the pneumatic motor, slashing your output torque by 40% or more.
+ What are the benefits of a "Twin Hammer" mechanism versus a "Rocking Dog" hammer?
Rocking dog mechanisms strike hard but deliver uneven, vibrating rotational impacts that cause rapid hand and wrist fatigue. JET's twin-hammer mechanism uses two identical hammers striking simultaneously on both sides of the anvil spindle. This delivers a much more balanced, rapid, and fluid series of impact blows, reducing tool vibration while maximizing torque delivery.
+ How often should I lubricate this tool to ensure it passes code and field standards?
To protect the internal air motor vanes, you should inject 4 to 5 drops of premium pneumatic tool oil directly into the air inlet connector before every single shift, or utilize an inline air filter-lubricator system. Additionally, the internal twin-hammer clutch mechanism should be packed with specialized impact grease via the tool's flush grease fitting every 40 hours of active shop operation.
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Product Specifications

selling_points:
✔️ Ultra-Light Composite Frame: Weighs just 7.7 lbs—nearly 3X lighter than traditional aluminum 1-inch models. ✔️ 1,500 Ft-Lb Nut-Busting Power: Delivers immense reverse breakaway torque to clear rusted studs fast.
category_bullets:
• Jet 1" Impact Wrench Core: Professional 1" pneumatic composite driver produces 1,500 ft-lb reverse torque for intense heavy machinery service. • Twin Hammer Core: Cuts feedback. • 7.7 lb Base.
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