The calibrated espresso tamper has a 58mm flat base, Please check your portafilter size. The tamper is pressure sensitive -when fully compressed, the coffee grounds in the portafilter are tamped with consistent pressure every time - the perfect tamp for the best espresso extraction possible.
Precision Calibrated Tamper
Improved Consistency – With a design that achieves the same tamp every time.
Pre-Set Pressure Precision – The same pressure every time.
58mm Base – Standard size for a large majority of Home and commercial Espresso Filter baskets.
Stainless Steel, Plastic