Other Air Tools · ARRM38
3/8 Inch Drive Pneumatic Ratchet
Air-Powered Wrench for Professional Shop and Production Use
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- Genuine Teng Tools — professional-grade, designed in Sweden
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- Backed by guarantee — built to last a working lifetime
Why this one
Pneumatic power for shop efficiency
This tool uses compressed air to deliver consistent torque during fastening and removal tasks.
3/8 inch square drive compatibility
The 3/8 inch drive accepts the widest range of commonly used sockets, extensions, and accessories already in your toolbox.
Built for production work
Designed to keep up with professional demands, this pneumatic tool is suited for mechanics, technicians, and tradesmen who need a reliable ratchet on the air line every day.
Fastening and removal tasks
Use it for both tightening and loosening fasteners across a range of shop applications.
Teng Tools quality
Teng Tools designs professional-grade hand tools and power accessories trusted by working tradesmen.
Read the full description
Add dependable pneumatic torque to your shop with the Teng Tools 3/8 inch drive air-powered ratchet. Designed for professional mechanics and technicians, this tool connects to your existing compressed air supply and delivers smooth, consistent operation for fastening and removal tasks throughout the workday.
The 3/8 inch square drive accepts the sockets, extensions, and adapters you already own, making it a drop-in addition to any working toolbox. Air-powered operation eliminates the need for batteries and chargers, so the tool is always ready when you reach for it — a real advantage during long shifts or high-volume production runs.
Whether you are servicing brakes, pulling intake manifolds, working a bench assembly, or handling routine maintenance, this ratchet provides the repeatable cycling that keeps jobs moving. It replaces the fatigue of hand-ratcheting on repetitive fasteners and frees your energy for the tasks that demand more attention.
Teng Tools builds this ratchet to the same professional standard that tradesmen expect across the entire Teng Tools range. Pair it with your favorite socket set and a quality air line, and you have a setup that earns its place on the shop wall day after day.
Get it in a set
This other air tools also comes in these 2 sets, with the tools that go with it.
Specifications
| Type | Air Tools |
|---|---|
| Category | Other Air Tools |
| Drive size | 3/8" |
| Part number | ARRM38 |
Data sheet
Full details from Teng Tools. Download PDF
Lifetime warranty
Send a photo and your order number. Same-day shipping on replacements.
Ships from Texas
From our Fort Worth warehouse.
Questions?
Call (817) 767-3392.
Shipping
Free shipping on orders over $99. Orders are stocked, picked and shipped from our warehouse in Fort Worth, Texas — orders placed on business days ship same-day wherever possible.
Lifetime warranty
Teng Tools hand tools are backed by a lifetime warranty against manufacturing defects. Screwdriver bits and socket bits are consumables and are guaranteed to meet dimensional standards. Torque wrenches and air tools can be serviced and recalibrated on request — contact us to arrange it.
Returns
Not right for the job? Contact us within 30 days of delivery and we'll sort out a return or exchange. Tools must be unused and in their original packaging. Warranty claims are handled separately — a defective tool is our problem, not yours.
Why Teng Tools?
Swedish Design Since 1985
Trusted in 30+ countries. Designed in Sweden, built to ISO and DIN standards.
Shipped Fast from Texas
US warehouse in Fort Worth, so orders move fast. TAA approved for government and defense.
Lifetime Warranty
Something goes wrong? Send a photo and your order number — same-day shipping on replacements.
The Devil Is in the Detail
Satin-finish wrenches, through-blade screwdrivers, heavy-gauge storage — built to last.
Reviews
“Great Durable Tool”
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★★★★★
3/8 Air Ratchet Wrench
Great Durable Tool !

