Welcome to Downhole Country USA

In Odessa, TX, we build the tough tools and parts that drilling crews count on—made for hard work, heavy use, and no wasted time.

Explore Our Services

We provide tough, reliable drilling and oilfield tools built to meet the needs of commercial and industrial operations with no time for downtime.

Downhole Drilling Tools

Downhole Drilling Tools

We manufacture tough, reliable downhole drilling tools that stand up to deep pressure, heat, and vibration. Whether you’re drilling vertically or directionally, our tools are built to perform in harsh conditions—helping crews drill faster, safer, and with less failure.

Our tools are made from high-strength materials using precision machines to ensure long-lasting performance. We work for Service Companies and manufacturers improves hole quality, reduces downtime, and supports both straight and angled drilling. When conditions get rough, our downhole tools help you keep drilling on target.

Oilwell Work-over Tools

Oilwell Work-over Tools

We build strong, durable work-over tools designed to repair, maintain, and improve well performance. These tools help keep your operations running smoothly by supporting key tasks like well cleaning, re-completions, and more. Our tools are made to last through rugged use and daily demand.

Our work-over tools include packers, pulling tools, fishing gear, and essential parts like Spang jars, rope sockets, swivels, drop valves, pump bottoms, and swab mandrels. Each tool is built to last in tough environments. Focused on safety and strength, we help boost production, improve well access, and stay on budget—day in and day out.

Custom Design & Manufacturing

Custom Design & Manufacturing

Need a hard-to-find part for an older well or rig? We specialize in custom-built replacements when off-the-shelf parts just won’t work. From aging drill systems to discontinued equipment, we help get your operation running again with custom pieces that fit right and perform reliably.

Many older rigs need parts no longer available on the market. That’s where we come in. We build replacements from scratch using CNC technology, quality metals, and exact measurements. Our inventory includes custom reamer bodies, chert cutters, pins, blocks, washers, spacers, gas compressor parts, and more—all made to handle real field conditions.

Roller Reamers

Roller Reamers

Replacing a roller reamer can be costly and slow you down. That’s why we manufacture our own, using quality materials built for long-term use. Whether you need a standard size or something to fit a specific rig, like from Once or Drilco, we can deliver the right fit fast.

Our roller reamers help reduce tool wear, keep holes straight, and improve drill string stability. We offer a range of sizes and builds to match your equipment and field needs. Each reamer is precision-machined, field-tested, and ready for rugged use. Based in Odessa, TX, we’re your go-to manufacturer for dependable roller reamers that drill better and last longer.

About Us

Southwestern Machine Products provides dependable tools and custom parts for oilfield operations, with deep roots in West Texas drilling.

Based in Odessa, TX, we’ve spent decades supporting the oil and gas industry with high-quality tools and precision parts. Our team specializes in downhole tools, work-over equipment, roller reamers, and custom manufacturing—built tough to meet the demands of real field conditions.

We serve commercial clients who need reliable, no-nonsense solutions. Whether you’re drilling a new well or servicing an old one, we’re here to help you work faster, safer, and smarter. We also build hard-to-find parts for older rigs, helping companies avoid costly delays. If it needs to be built right—and built fast—we’re the crew to call.

Why Work With Us

We help drilling and service companies stay productive with reliable tools, fast turnaround, and custom parts built to match exact specs.

Built for the Field
Built for the Field

Our tools are made to handle high pressure, heat, and wear—built tough for real work, not just the shelf.

Fast Turnaround
Fast Turnaround

We move quickly on custom orders and replacements, so your crew spends more time drilling and less time waiting.

Hard-to-Find Parts
Hard-to-Find Parts

We carry and build replacement parts for older wells and rigs, saving you time, money, and frustration.

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Welcome to Downhole Country USA

Proudly based in Odessa, TX—where hard work drives everything we build, and every tool is made to last in the toughest drilling jobs.