·Made of high hardness chrome molybdenum steel for durability

·Sizes: 1/4",5/16"(8mm), 3/8",10mm, 7/16"(11mm), 12mm, 1/2",

13mm, 9/16(14mm), 5/8(16mm), 17mm, 11/16, 3/4(19mm);

·Include the 3/8 "to 1/4"hex adapter,

3/8" drive for use use with flat wrench, pliers, socket

wrench, adjustable wrench, Vise-Grip locking pliers,

hand ratchets or impact wrench guns and air ratchets;

·The working end has a helical shaped flute to help grip,

rounded fasteners, round head bolts and pan head screws.