The blade thickness of the Minamoto Kanemasa Gyutou 240mm is approximately 2.0mm (max)(0.08″) and the weight is about 205gr (7.23oz). The difference between Minamoto Kanemasa and Honsho Kanemasa E-series is the steel material itself. The one used in Honsho E-series tends to have more carbon content and bit harder than Minamoto M-series, so it would be easier for average people (non-professional) using the Minamoto series. We hope this might help you.