#1
The counterfeit has a weight sticking out.
Real
Counterfeit
#2
The counterfeit has no dots.
#3
The counterfeit has no serial code on the shaft.
The counterfeit has a different backface design.
The counterfeit is generally rounder and has a wider leading edge and scoreline.
The font of the numbers is different.
The counterfeit has thick letters on the back face.
The counterfeit has a thin font.
The counterfeit has a bold "718" character.