Vim Tools VIMHCT50-04 T50-1/2 Cut Torx Driver, S2 Steel, 1/4", 3/4" Approved for hand and power tools S2 steel, fully heat treated for additional strength and durability 1/2 cut hi torque impact driver gun metal Gray plating also available as part of impact Hct6 10 pi Features and benefits: half cut Torx cut to half the normal depth Increases strength and improves fastener engagement Half cut Torx drivers also drive Torx Plus