Metric Hex Super Stubbies 1/4 Drive 5 Piece Set. Super Stubby Metric Hex Sockets in small popular sizes. (Sockets are one inch long.) These are the sturdy one -piece Design. S2 Alloy Steel - THE STRONGEST DRIVERS AVAILABLE. Quantity 5 Sockets on a rail - Hex (Allen) Great for working on German Cars. Sizes included: 3mm, 4, 5, 7 and 10mm. GREAT for BMW people! Heat treated to 56 to 62 RC. Satin Chrome plating. Super Deal!