The IDEAL Electrical 35-150 1/4 in. x 4 in. Heavy-Duty Cushioned-Grip Cabinet Screwdriver has a large 1/4" diameter shank that matches the blade tip, and it is great for tough applications. It has a cross-ground tip to provide a precise and secure fit in the screw slot. Plate chipping is prevented by a vapor-blasted tip. The Heavy-Duty Cabinet Cushioned-Grip Screwdriver also features a tough, chrome vanadium steel slotted heavy-duty round shank for corrosion resistance and a smooth feel, and the cushion-rubber grip handle resists slippage, offering greater torque and comfort.