Snap-on PT338 vs Matco MT2765G: Stubby Impact Wrenches Put to the Test

Introduction

Stubby impact wrenches live and die by one promise: serious torque in a very short body. This year, two big names squared off in that exact space. Snap-on’s new PT338 arrived with a $500 price tag, making it the most expensive compact stubby on the market. The Matco MT2765G, which held that expensive title before at $373, has a reputation for being the strongest compact in its class, with advertised numbers of 550 ft-lbs of working torque and 700 ft-lbs of breakaway torque.

Both tools went through the same dyno testing, and the results are worth reading closely, because on paper numbers rarely tell the whole story.

Snap-on PT338: A Premium Newcomer

The PT338 is Snap-on’s first real push into the compact stubby segment, and it was built in the same US plant that produces the larger PT650, which is easy to spot from its styling. It uses a 3/8 drive, the only drive size offered on this stubby, and advertises a very healthy 500 ft-lbs of max torque.

Physically it is a touch bigger than most: a slightly bulbous head and a length of 4.8 inches, compared to the Matco’s 4.5. Snap-on being a latecomer to the compact game, the company focused on a larger motor diameter and a higher vane count to try to bring something new to the table. The forward/reverse switch also feels noticeably firmer than the one on the PT650.

Matco MT2765G: The Reigning Compact Champion

The MT2765G, where the G stands for green, measures 4.5 inches long, in line with most air compacts, though it is a bit of a chunker, with everything just slightly oversized in the hope of delivering big power. Its controls follow a preferred IR-style layout: a push-button forward/reverse switch and a rear dial power selector.

Inside the Motors: Vane Count and Rotor Diameter

This is where the two tools genuinely differ. The PT338 uses an eight-vane rotor, while most compacts tested previously ran five or six vanes. The Matco is already fairly modern with a seven-vane rotor. Prior testing showed that adding a higher vane count can increase performance, though the gains flatten out somewhere around seven versus eight vanes.

The bigger difference is motor diameter. Snap-on machines its rotors with tight tolerances, allowing a larger rotor diameter that delivers more power and RPM. The Matco’s rotor, as it turned out, had a factory issue: it was a hair longer than its cylinder, causing wear against the face plate. A repair shop polished the rotor down with increasing grits of sandpaper, and the tool ran better than ever afterwards.

Real-World Torque Test Results

In the 5-second working torque test, the PT338 managed 215 ft-lbs, while the Matco hit 289, a new compact record at the time. In the 10-second reverse max torque test, the Snap-on reached 243 ft-lbs with a curve that flattened out toward the end, while the Matco posted 293, though it was visibly running hot and flatlining, smoking from the start even with pneumatic oil.

After the rotor fix, the Matco’s working torque climbed to 303 ft-lbs and its max torque run reached a smooth 361 ft-lbs, setting another category record. The Snap-on’s best case came in a 15-second test at 150 psi static line pressure, where it jumped to 386 ft-lbs, more than 110 ft-lbs above parts of its standard curve. That was the largest pressure sensitivity difference ever recorded in this testing, suggesting the large-diameter motor really prefers higher line pressure.

On the rank chart, which factors in price, the Matco scored 98.7 points and finished sixth overall while the Snap-on took third place at 255.6, both dragged down mainly by cost. On the pure average power rank chart, the Matco took first place by a wide margin, with the Snap-on moving into third.

Which One Should You Buy?

If money is no object, the Snap-on PT338 measures out as the powerhouse compact you can buy, and its low-end out-the-gate performance is hard to ignore, especially if you run your guns at 150 psi. If price matters at all, the Matco MT2765G made more torque, is shorter, and costs $127 less. The single fault found on the Matco, the rotor tolerance issue, was the first reported case, and it is not something that should increase power, so it does not appear to be a widespread pattern.

Buyers who already own either tool are likely very happy with their purchase. For everyone else, the decision comes down to whether you value raw measured output per dollar or the high-pressure ceiling of Snap-on’s larger motor.

Conclusion

Dyno testing makes this a clear-eyed comparison: the Matco MT2765G delivers the best measured performance per dollar in the stubby class, while the Snap-on PT338 trades a higher price for a big, high-vane motor that rewards higher line pressure. Match the tool to your budget and air setup, and either can be a strong choice.