Impact Screw Driver Set.Crafted From High-Strength, Heat-Treated Chrome Vanadium Or S2 Tool Steel, The Screwdriver And Its Interchangeable Bits Are Built To Handle Heavy Impacts Without Cracking Or Deforming. The Non-Slip, Knurled Grip Handle Ensures Safety And Control During Operation, Even When Working With Oily Or Gloved Hands. The Robust Construction Of The Tool And Bits Guarantees Long-Term Durability, Even Under Frequent High-Impact Use.Most Impact Screwdriver Sets Come Complete With A Variety Of Phillips, Slotted, Torx, And Hex Bits, Stored Neatly In A Compact Carry Case For Organization And Portability. The Bits Are Precision-Machined For A Tight Fit, Reducing The Risk Of Stripping Or Cam-Out.