FLUKE's ISLS5 insulated slotted screwdriver, 0.16 x 4 in, 1000 V and are designed to provide you with the greatest safety, comfort, quality, and ruggedness when working on energized circuits. This insulated slotted screwdriver features an ergonomic handle that adapts to user's hand and a handle size of 3.7 x 1.2 in (94 x 30 mm).