
When fastener access is limited around radiators, brackets, panels, and compact engine-bay spaces, the AIRCAT 1320 3/8" Butterfly Impact Wrench gives mechanics a palm-sized impact option with precise throttle control. Its 80 ft-lbs maximum torque supports light fastening and removal work without stepping up to a larger pistol-grip impact, while 100 ft-lbs of loosening torque helps free smaller bolts that are awkward to reach by hand. The 10,000 RPM free speed helps run fasteners down quickly, and the 3/8" square drive fits common 3/8" impact sockets used in automotive, maintenance, and shop repair work.
Weighing only 1.10 lbs. with an overall length of 5.40", the 1320 is built for one-hand operation in areas where tool size matters as much as torque output. A twin hammer mechanism (an impact design that delivers two blows per revolution for balanced power transfer) helps reduce vibration while improving reliability, and the built-in swivel air inlet improves maneuverability when the air hose would otherwise fight the tool angle.
Type: Butterfly Impact Wrench | Model: 1320 | Drive Size: 3/8" Square Drive | Free Speed: 10,000 RPM | Bolt Capacity: 1/2" | Impacts Per Minute: 1,800 | Max Torque: 80 ft-lbs | Loosening Torque: 100 ft-lbs | Weight: 1.10 lbs. | Length: 5.40" | Air Consumption: 8 CFM | Recommended Hose Size: 3/8" | Air Inlet: 1/4" NPT
Features:
- Provides 80 ft-lbs of maximum torque and 100 ft-lbs of loosening torque for light fastener removal and installation.
- Compact butterfly configuration fits comfortably in the operator’s palm for controlled work in tight service areas.
- 5.40" overall length helps reach around radiators, engine accessories, panels, and other restricted spaces.
- Three-position built-in power management switch gives the user better control over torque output on the job.
- Built-in swivel air inlet increases maneuverability and reduces hose interference in confined work areas.
- Twin hammer mechanism reduces vibration while increasing reliability.
- 1.10 lb. tool weight helps reduce hand fatigue during repetitive fastening tasks.
Applications:
- Automotive repair: Removing and installing smaller fasteners around radiators, brackets, covers, and engine-bay components where a pistol impact is too bulky.
- Fleet and equipment maintenance: Light-duty bolt work on panels, guards, interior components, and compact assemblies that require access more than high breakaway torque.
- Industrial MRO: Fastener run-down and removal on light machinery covers, fixtures, access plates, and general shop hardware.
- Body shops and service bays: One-hand impact use in tight areas where a compact 3/8" drive tool improves positioning and control.
- DIY garage work: Useful for hobby mechanics working on small automotive fasteners, restoration projects, and cramped repair areas with a properly sized air supply.
FAQs:
- Q: What is a butterfly impact wrench used for?
A: A butterfly impact wrench is a compact palm-style air impact used where clearance is limited. The butterfly throttle allows forward and reverse control from the tool body, making it useful around radiators, brackets, panels, and other tight work areas. - Q: Is the AIRCAT 1320 powerful enough for lug nuts?
A: No. With 80 ft-lbs of maximum torque and 100 ft-lbs of loosening torque, this tool is better suited for smaller fasteners and confined-space work. Lug nuts typically require a larger 1/2" drive impact wrench with substantially higher breakaway torque. - Q: What air hose should I use with this tool?
A: AIRCAT lists a 3/8" recommended hose size for the 1320. Using the recommended hose size helps maintain air flow to the tool and prevents performance loss caused by undersized air lines. - Q: What does the 1/2" bolt capacity mean?
A: Bolt capacity is the manufacturer’s general fastener-size rating for the tool. It does not mean the tool should be used for every 1/2" bolt application; torque requirement, fastener condition, and material still determine whether the tool is appropriate. - Q: Does this tool require lubrication?
A: Yes. As a pneumatic impact wrench, it should be supplied with clean, dry, properly regulated air and regular air tool lubrication. Impact mechanisms also require grease at normal service intervals.
| SKU | Free Speed (RPM) |
Bolt Capacity (in.) |
Square Drive (in.) |
Impacts Per Minute | Max Torque (ft-lb) |
Weight (lbs.) |
Length (in) |
Air Cons. (CFM) |
Rec. Hose Size (in.) |
Air Inlet NPT (in.) |
|---|---|---|---|---|---|---|---|---|---|---|
| 1320 | 10,000 | 1/2 | 3/8 | 1800 | 80 | 1.10 | 5.40 | 8 | 3/8 | 1/4 |
| 1077-TH | 9,000 | 1/2 | 3/8 | 1600 | 500 | 2.80 | 3.85 | 6 | 3/8 | 1/4 |
For help choosing the correct Aircat Pneumatic Tools, please call (800) 608-5210 or email info@intlairtool.com
warning WARNING: This or other products sold on this website may expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
For more information go to www.P65Warnings.ca.gov