The Craftsman P2 Phillips screwdriver is a hand tool that is used to install or remove a screw-type fastener from any penetrable material. It is 7 7/8 inches in length and 1 inch in width. The screwdriver is made up of two cylinders, one that is 1 inch in diameter, and the other that is 0.25 inch in diameter. The metal, 0.25-inch diameter cylinder is centered and joined with the plastic, 1-inch diameter cylinder. At the end of the 0.25-inch cylinder is the Phillips head. The 1-inch cylinder is translucent at the top and navy at the bottom. The 0.25-inch cylinder is silver in color. The entire screwdriver is smooth to the touch. The screwdriver contains the following three parts: the handle, the shaft, and the Phillips tip.
For the following discussion, refer to Figure 1 to view the screwdriver’s parts, as well as the physical dimensions.
The handle is a gripping device that allows the user to hold the screwdriver while installing or removing a screw from a material. It is cylindrical in shape with grooves to aide the gripping function. It is 3.5 inches in length and 1 inch in diameter. The handle is made of plastic and is smooth to the touch with a glossy finish. It is translucent in color with navy blue at the bottom where it is fused with the next part, the shaft.
The shaft is a torqueing device that lets the user install or remove a fastener from a material. The handle transfers the torque from the user’s hand to the shaft, which allows the fastener to turn either clockwise or counterclockwise so that it can be installed or removed. The shaft is cylindrical in shape and is made of steel. It is 5.5 inches in length, 0.25 inch in diameter, smooth to the touch, and silver in color. The shaft is connected to the Phillips tip.
The Phillips tip is a gripping device that holds on to the fastener while the torque is being applied to it. It is the part that physically touches and moves the fastener to install or remove...