Go-Thru Screwdrivers 7 pcs set Description Made of super hardened silicon alloy steel (S2), heat and wear resistant blades Magnetic tips Double injected soft handle Contains 4 slotted: 3.0 X 75mm – 4.0 x 100mm – 6.0 x 150mm – 8.0 x 175mm 3 Phillips: PH 1 x 75mm – PH 2 x 100mm – PH 3 x 150mm