For mechanics, heavy equipment technicians, or serious DIYers working on hydraulic systems, this all-in-one test kit is a lifesaver. It comes packed in a durable aluminum carrying case with a handle, so you can take it right to the job site. Inside, you'll find FIVE different pressure gauges to cover a huge range: 10bar, 100bar, 250bar, 400bar, and a heavy-duty 600bar (10,000 PSI) gauge. Each gauge is glycerin-filled to dampen vibration and give you a stable, accurate reading. You also get FIVE long test hoses (about 5.25 feet each), THIRTEEN different test couplings, and FOURTEEN tee connectors. This wide array of fittings is designed to connect to many different brands of excavators and hydraulic machinery like Caterpillar, John Deere, and Case. Everything is made from quality materials like stainless steel and carbon steel. Whether you're diagnosing a weak pump, checking relief valve settings, or performing routine maintenance, this professional-grade kit has the tools you need.