Klein Tools 5/16" Keystone Tip Cushion Grip Screwdriver is professional grade. It features a round shank made of steel for durability and a black rubber handle for a comfortable grip. The screwdriver has an overall length of 10-15/16" and is ideal for use in tight spaces. The heavy-duty square shank allows for wrench-assisted turning, while the bolster reinforces the shank for hard use. The cushion-grip handle provides greater torque and comfort, while the precision-machined tips ensure an exact fit. The "Tip-Ident" feature quickly identifies the screwdriver type and tip orientation.