The MEASUREX Chock full o'Nuts scoop I was using to tamp my espresso grounds required that I press harder, and though round did not closely fit my Krups type 171 espresso machine portafilter. This omgogo tamper fits well and weighs 198 grams (as opposed to the 53mm version, which weighs 250 grams). The handle, which unscrews, is, as others have noted (some critically), hollow. If the weight of this tamper is deemed insufficient, the 3/4" X 2-3/4" cylindrical void in the handle could be filled (all or partly) with bbs, ball bearings, or some other weighty material. If the potential for the handle to unscrew is a concern, a little Loctite is a simple solution.