Fits for 58.55mm Portafilter: 58.3mm stainless steel tamper, tailored to 58.55mm portafilter baskets. Suitable for most 58mm coffee machine portafilters on the market, such as Breville 9 series, DeLonghi, Gaggia, La Marzocco, Rancilio, Saeco, Ascaso, etc. Consistent Extraction: Ensure uniform grounds distribution and pressure, empowering you to effortlessly craft the perfect shot at home. 30lb Spring Loaded: Built-in dual springs provide 30lb of pressure for more effortless use, non-slip texture, frosted texture, great experience for baristas. High-quality for Baristas: Master Your Brew with the 53mm Coffee Tamper! Its stainless steel design and threaded base optimize extraction, giving you even, flavorful shots every time. Elevate your home barista game and explore a world of coffee perfection. More Comfortable & Even Pressure: Revolutionize tamping with our ergonomic, handle-free tamper. Its cylindrical shape offers auto-leveling for an even press, reducing RSI risks. Enjoy a more comfortable coffee making process. Pro Tips: Fill your portafilter basket with coffee grinds for optimal tamping pressure, yielding a tighter pack and richer flavor. Groom the basket's top with a finger or flat edge before leveling and tamping. Brew with premium filtered water for the best results. 58.3mm Espresso Tamper, Maestri House Stainless Steel Barista Coffee Tamper for Espresso Machine, Adjustable Depth Tamper Fits All 58.55mm Espresso Portafilter Fits for 58.55mm Portafilter