Was needing to put a edge on a pocket knife I have had since 13 years old . I only use it around the house .A Rigid brand . It has been on countless fishing trips and ridden many miles in my pocket . I finally put it in my drawer cause came close to losing it a few to many times and finally switched to a knife with a pocket clip .It's one of them things we have that may be cheap but has much more value to ya . Like my dads old Timex watch I wouldn't trade for a brand new Rolex . So if my math is right it will make this knife 41 years old . I lose stuff in hours of getting it how I managed to still have this is a miracle !!!!!!