A typical simple screwdriver has a handle and a shaft, ending in a tip the user puts into the screw head before turning the handle. *Material:Cr-v *Round Blade:1pc SL3.3*75, 1pc SL4.0*4*100, 1pc SL5.5*5*125, 1pc SL6.5*6*150, 1pc SL8.0*8*200, 1pc SL6.5*6*38, 1pc PH0*3*60, 1pc PH1*5*80, 1pcPH2*6*100, 1pc PH3*8*150 Ergonomically designed handle with slip-resistant textured grip for comfortable hold