Abstract: A finger guide for use in measuring, marking, scribing, cutting and similar operations common to the field of construction. The device assists in performing these operations on an object such as a board or piece of drywall. The finger guide has a top guide which is laid on the top surface of an object, and a perpendicular edge guide which abuts an edge of the object. The edge guide includes an index finger hole which allows the user to slip the device on his or her index finger and “wear” it like a ring. The top guide opens into a tape trough positioned to receive and hold a length of metal tape from a conventional tape measure. The top guide also includes reference marks used for measuring. Other features allow the device to be used as a saw guide in conjunction with a conventional circular saw.

Abstract: An improved framing square having integral features for automating the marking and cutting of angles. The square contains two sliding carriages—one in the body and one in the blade. Each carriage has a deployable pin. In order to set an angle, the user first deploys the pins in each sliding carriage so that they protrude downward from the square. Next, the user sets the sliding carriage in the body to the desired position and locks it in place. The user then sets the sliding carriage in the blade to the desired position and locks it in place. The two pins protruding from the sliding carriages are then butted against the board to be cut. Once they are in place, the blade of the square will form the correct cutting angle across the board. Since many common cuts employ a twelve inch base leg, the invention includes another feature: Rather than set the sliding carriage within the body to twelve inches, the user may opt instead to deploy a fixed pin located in the body at the twelve inch position.