C k xonic esd screwdriver slotted ph set of 7 ck tools t4883xesd ergonomically designed handles with hollow rotating cap for ease of use and precise control electro statically dissipative to protect sensitive electronic components blades manufactured from premium quality chrome vanadium molybdenum steel for strength tips accurately machined for the ultimate screw fit contains slotted 2 5x75 3x100 3x150 4x100 4x150 ph0x60 ph1x80ck tools t4883xesd xonic esd screwdriver slotted ph set