very frustrating - went through all 3 blades and couldn't cut ANY points! this is madness I'm an amateur and I work with horseshoes and spikes. This is made for VERY THICK metal and nothing goes through 3 blades and not a mandrel. Let's say this could be the reason for the bad batch I used to make about 40 single bladed studs but this was a REAL disappointment from a brand name manufacturer.