The IDEAL Electrical 35-164 1/4 in. x 4 in. Heavy-Duty Keystone Tip Screwdriver has a cushion-grip handle that is resistant to oil, gas and water, and helps to prevent slippage for greater torque and superior comfort. It features a vanadium steel heavy-duty round shank that is nickel-chrome plated to resist corrosion. It has a cross-ground black oxide finish tip to provide a precise and secure fit in the screw slot. The handle end is color-coded for quick and easy identification. The screwdriver meets ASTM F1505-01, EN, DIN and IEC 60 900-test standards.