Abstract: An adjustable combination square includes a longitudinally extending blade slidably received within a slot in a head. A movable clamping member is engaged with the blade, and a biasing member acts on the clamping member to normally bias the clamping member toward an engaged position in which the blade is engaged against a surface of the slot. A manually operable pivotable actuator arrangement is carried by the head. Actuation of the pivotable actuator arrangement applies a force to the clamping member that works against the biasing member so as to selectively move the clamping member away from the engaged position to enable the blade to be moved axially relative to the head. Releasing the pivotable actuator arrangement releases the force so that the biasing member returns the clamping member to the engaged position to maintain the blade in position relative to the head.

Abstract: A rafter angle square includes a first, ruler side, a second fence side, and a hypotenuse side extending between the ruler and fence sides to form a right triangle. The tool includes a front side and a back side and a number of markings on the front and back sides for carrying out measurements and other operations with the tool. The tool includes a scribe guide arrangement having a slot defining opposing edges. The edges include a number of projections extending toward the opposing edge and defining a number of scribe guide notches between adjacent projections. The scribe guide notches of the opposing edges are aligned with one another and configured to enable a user of the tool to mark a workpiece in a first and second, opposing direction parallel with an edge of the workpiece at the same distance from the edge of the workpiece.