When very large fasteners require 1″ drive capacity and high breakaway output, the AIRCAT 1890-P 1″ Two Jaw Pistol Grip Impact Wrench gives fleet, off-road, steel erection, agricultural, and industrial maintenance teams a powerful pneumatic tool for large-bolt service. Its 2,000 ft-lbs maximum torque supports removal and installation on structural connections, equipment frames, suspension hardware, wheel-area fasteners, and heavy assemblies, while 2,500 ft-lbs of loosening torque helps break tight or corroded fasteners free before run-down. The 1″ square drive fits compatible 1″ impact-rated sockets, and the 4,200 RPM free speed provides controlled run-down speed for larger fastener classes.The 1890-P uses AIRCAT’s exclusive two jaw clutch mechanism (a clutch system where jaws on the cage directly drive the anvil instead of relying on conventional hammering). This design helps increase torque transfer and reduce wear compared with conventional impact mechanisms, making the tool well suited for high-load 1″ drive work. A steel hammer case and heavy duty cast housing handle support demanding service use, while the combined through-hole and friction-ring socket retainer helps secure compatible 1″ drive sockets during large-fastener removal and installation.Type: Two Jaw Pistol Grip Impact Wrench | Model: 1890-P | Drive Size: 1″ Square Drive | Free Speed: 4,200 RPM | Bolt Capacity: 1-1/4″ | Impacts Per Minute: 1,200 IPM | Max Torque: 2,000 ft-lbs @ 90 PSI | Loosening Torque: 2,500 ft-lbs | Weight: 24.00 lbs. | Length: 11.00″ | Air Consumption: 24.5 CFM free running / 6 CFM average | Recommended Hose Size: 1/2″ | Air Inlet: 1/2″ NPTFeatures:Provides 2,000 ft-lbs of maximum torque and 2,500 ft-lbs of loosening torque for high-output 1″ drive fastening work.Two jaw clutch provides strong torque output and increases hammer life beyond conventional impact mechanisms.Two jaw clutch design reduces wasted energy by directly driving the anvil, helping improve torque transfer during large-fastener service.Precision air motor helps reduce air consumption compared with other 1″ impact wrenches, with AIRCAT listing 24.5 CFM free running and 6 CFM average air consumption.Designed for fleet service, off-road vehicle service, and steel erection applications.Steel hammer case and heavy duty cast housing handle support reliability during demanding 1″ drive impact wrench use.Combined through-hole and friction-ring socket retainer helps secure compatible 1″ drive impact sockets.Applications:Fleet and heavy truck maintenance: Removing and installing suspension hardware, frame fasteners, chassis bolts, wheel-area hardware, mounts, guards, and large service components.Off-road vehicle service: Supporting repair work on large equipment frames, drivetrain supports, structural brackets, axle components, and high-load fastener points.Steel erection: Working on structural connections and large bolted assemblies where 1″ drive socket capability and high loosening torque are required.Agricultural equipment repair: Servicing tractors, implements, service vehicles, hubs, mounts, guards, and large-bolt assemblies that require 1″ impact-rated sockets.Industrial maintenance and MRO: Removing and installing large fasteners on machinery frames, equipment bases, access plates, fixtures, and plant repair assemblies.FAQs:Q: What is the AIRCAT 1890-P best used for?A: The AIRCAT 1890-P is best used for 1″ drive fastening where very large bolts require high torque and strong socket drive capacity. AIRCAT lists this model for fleet service, off-road vehicle service, and steel erection applications.Q: What is a two jaw clutch mechanism?A: A two jaw clutch mechanism uses jaws on the cage to directly drive the anvil. Compared with conventional hammering mechanisms, this action helps increase torque transfer, reduce wear, and support longer mechanism life.Q: What is the difference between maximum torque and loosening torque?A: Maximum torque is the tool’s headline output rating, while loosening torque is the breakaway force used to remove tightened or stuck fasteners. AIRCAT lists this model at 2,000 ft-lbs maximum torque and 2,500 ft-lbs loosening torque.Q: What air hose size should I use with the AIRCAT 1890-P?A: AIRCAT lists a 1/2″ recommended hose size and a 1/2″ NPT air inlet for this model. Using the recommended hose size helps maintain the airflow needed for high-output 1″ drive impact wrench operation.Q: Can I use smaller drive sockets with this impact wrench?A: No. The 1890-P has a 1″ square drive and should be used with compatible 1″ drive impact-rated sockets. Do not use chrome hand sockets or undersized drive adapters for high-torque impact work.AVAILABLE VARIATIONS AND SPECIFICATIONS SKUFree Speed (RPM)Bolt Capacity (in.)Square Drive (in.)Impacts Per MinuteMax. Torque (ft-lb) @90 psiWeight (lbs.)Length (in)Air Cons. (CFM)Rec. Hose Size (in.)Air Inlet NPT (in.)1880-P-A4,8001-1/41900170023.5011.7516.01/21/21890-P4,2001-1/411200200024.0011.0024.51/21/2 (function(){ const btn=document.getElementById(‘specToggle’); const panel=document.getElementById(‘specPanel’); const icon=document.getElementById(‘specIcon’); let manual=false; function applyDefault(){ if(manual)return; const open=window.innerWidth>640; panel.style.display=open?’block’:’none’; btn.setAttribute(‘aria-expanded’,open); icon.textContent=open?’-‘:’+’; } btn.addEventListener(‘click’,function(){ manual=true; const open=panel.style.display===’none’; panel.style.display=open?’block’:’none’; btn.setAttribute(‘aria-expanded’,open); icon.textContent=open?’-‘:’+’; }); window.addEventListener(‘resize’,applyDefault); applyDefault(); })(); body{margin:0;padding:0;overflow-x:hidden;} .spec-accordion{width:100%;max-width:1100px;margin:1em auto;box-sizing:border-box;font-family:Verdana,Arial,sans-serif;} .spec-accordion *{box-sizing:border-box;} .spec-accordion-toggle{width:100%;display:grid;grid-template-columns:32px 1fr 32px;align-items:center;gap:8px;text-align:center;cursor:pointer;background:#444;color:#fff;border:0;padding:12px 16px;font-family:Verdana,Arial,sans-serif;font-size:16px;font-weight:700;text-transform:uppercase;letter-spacing:.02em;} .spec-accordion-title{grid-column:2;text-align:center;} .spec-accordion-icon{grid-column:3;text-align:right;font-size:20px;font-weight:700;} .spec-accordion-panel{border:1px solid #cfcfcf;border-top:0;background:#fff;overflow:hidden;} .spec-table-wrapper{width:100%;max-width:1100px;margin:0 auto;overflow-x:hidden;} .spec-table{width:100%;border-collapse:collapse;table-layout:fixed;font-family:Verdana,Arial,sans-serif;font-size:12px;} .spec-table th,.spec-table td{border:1px solid #d3d3d3;padding:6px 8px;text-align:center;vertical-align:middle;white-space:normal;overflow-wrap:anywhere;line-height:1.25;} .spec-table thead th{background:#444;color:#fff;text-transform:uppercase;font-weight:700;} .spec-table th.identifier-header{background:#999;color:#fff;} .spec-table tbody tr:nth-child(even){background:#f7f7f7;} .spec-table tbody tr:hover{background:#e5e5e5;} .spec-table a{color:#0066cc;font-weight:700;text-decoration:none;} .spec-table a:hover{text-decoration:underline;color:#004f99;}@media(max-width:640px){.spec-accordion{padding:0 10px;}.spec-accordion-toggle{font-size:13px;padding:10px 12px;grid-template-columns:24px 1fr 24px;}.spec-table{border:0;}.spec-table thead{display:none;}.spec-table,.spec-table tbody,.spec-table tr,.spec-table td{display:block;width:100%;}.spec-table tr{margin-bottom:10px;border:1px solid #ccc;background:#fff;}.spec-table td{display:flex;justify-content:space-between;gap:12px;text-align:right;border:0;border-bottom:1px solid #e2e2e2;padding:8px 10px;}.spec-table td:last-child{border-bottom:0;}.spec-table td::before{content:attr(data-label);font-weight:700;text-transform:uppercase;color:#444;text-align:left;flex:0 0 45%;}}Looking for more information about theAircat Pneumatic Impact Wrenches?Click hereto view theCatalog.For help choosing the correct Aircat Pneumatic Tools, please call(800) 608-5210or [email protected]
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