From the Manufacturer
Interchangeable 7" long bits have a straight hex on one end and a ball hex on the other. Bits work with the included Ratcheting "T" handle, and a 2 way screwdriver handle. . Comes in a molded storage case. 2mm thru 8mm
VIMBHM100 Features: -Blades feature hex drive on one end and same size ball hex on the opposite end.-Blades are heat S-2 steel heat treated to RC 56/62.-Blow molded plastic storage case.-10Pcs Extra Long Metric Ball Hex Ratcheting T-Handle Set. Includes: -Set includes, ratcheting ''T'' handle, and 2 way screwdriver / ''T'' handle.-Lifetime warrantyVIMBHM100 - Includes: 2mm, 2.5mm, 3mm, 5mm, 6mm, 8mm hex and 8mm ball hexVIMBHI100 - Includes: 1/8'', 9/64'', 5/32'', 3/16'', 7/32'', 1/4'', 5/16'' hex and 5/16'' ball hex. Dimensions: -7'' long drive blades. Warranty: -Sets & Kits do not have warranty/ see individual pcs for details.