E-Z Red's SAE hex bit set, No. HLS1000, fits into 10 mm,12 mm or 17 mm wrench or socket and enables the user to remove hex bolts coming in 1/8", 9/64", 5/32", 3/16", 7/32", 1/4", 5/16", 3/8", 7/16", 1/2", 9/16" and 5/8". This 12 piece set features ball detent holds the bit into the drive unit.