Chicago Pneumatic 1/2Dr 3Pc Met Wheel Nut Protector Impact Skt Set

Plastic coating on outside of socket wall to prevent damage to rims. Plastic cap on inside of socket to protect lug nut for damage. Different color socket for each size for easy determination. 3 most common metric sockets used on passenger cars. Case hardening sockets for longer life Sizes include: 17mm, 19mm, 21mm