Hey guys, Matt here with Front Rock Fences. Today, we’re doing an exclusive unboxing and field test of the US Hammer GPD-50 gas-powered post pounder.

I’ve heard a lot about this tool—it’s supposed to pound harder, hit harder, and comes with a 2-foot extension that pops off easily. Let’s dive in, see what’s inside the box, and then take it out for a test.

What’s Inside the Box

Right out of the box, everything is well-packaged and comes with easy-to-read instructions. Inside, I found:

• Adapters: Nicely bubble-wrapped and built with solid quality. One is a 2-inch adapter, while another fits 2 3/8-inch or 2 ½-inch posts.
• 2-Foot Extensions: These are a big deal for me. If you’ve watched my videos, you know I’m usually up on a ladder pounding posts—not exactly the safest setup. With these extensions, I can stay on the ground. They pop right on and off with a twist throttle for easy handling.

First Look at the US Hammer

Now for the main attraction—the US Hammer GPD-50 itself.

• Build & Design: Heavier than I expected, which is a good thing for durability. The design is sharp, with the US Hammer logo stamped into the metal.
• Engine: Powered by a Honda GX four-stroke engine—reliable and strong.
• Handles & Extensions: Installing the extensions took me less than 20 seconds. Compared to other brands, like Rhino, where you have to reroute cables and spend up to 30 minutes, this is a game-changer for efficiency on the job site.

On the back, you’ll see the throttle setup. Unlike other pounders I’ve used that just have a push lever, this one uses a twist throttle while pounding. It feels different but seems promising. Many people say this design is a game-changer, and I’m eager to see how it performs in the field.

PostMaster+ Adapter

Also included is the PostMaster+ adapter. This protects the top of your PostMaster+ steel posts from mushrooming when driving them into the ground. It’s simple to set up—just slide it in, tighten it, and you’re ready to go.

Field Test: Taking It to “Pound Town”

With everything set up, I geared up with ear and eye protection and headed out to test it on some posts.

The first impression? This thing hits hard.

It’s not like any other post pounder I’ve used before—it’s insane how powerful it feels. The two-foot extension handles really make a difference for me since I’m not the tallest guy, and avoiding ladders makes the process so much safer.

Final Thoughts

Here’s my honest review of the US Hammer GPD-50:

• It definitely hits harder than other pounders on the market.
• The 2-foot extension handles are a real game-changer for safety and efficiency.
• The Honda GX engine provides reliable power.
• Setup is quick and easy, saving valuable time on the job site.

If you’re in the market for a new post pounder, I highly recommend checking out the US Hammer. They even offer battery-powered versions if that’s more your speed.

You check out the US Hammer in use on our website at www.frontrockfences.com. Go to the GPD-50 post pounder right here on US Hammer for purchasing and product details.

—-Thank you Mat for the demo!