It uses half inch square ( 12,7mm) and its perfect for 610/3 oil filter , but probably fits most of similar ones with 14 sides , measured across flats 64,5mm. Printed in PETG 100% , If you dont own a half inch socket you can still use your hands since the wrench has ribs for better grip ( not like cylindrical oil filter :D
This one fits perfdectly for Mitsubishi Lancer
The author marked this model as their own original creation.