Brings New Life to Old Shaver
These helped bring new lift to my Norelco shaver.  They have been sharp and cutting well so far.  I have found that there might be some tolerance issues with either the thickness or holes for the spinning heads.  I have noticed that when not pressed to my skin the blades will make a slipping squeal.  Once I press it to my skin the pressure helps the spinning heads grip and it cuts no problem.  Overall it works well for shaving, but there might be a fit up issue with some Norelco shavers causing the blades to slip in free spin.
Rating: 4 stars