The hammer has a head and a handle which extends from the head. The head has at least two surfaces that face towards the handle and that lie in a common first plane. At least a portion of the handle extends linearly and perpendicularly from the first plane to allow a user to draw a straight line which is perpendicular to the first plane.

The hammer has a head and a handle which extends from the head. The head has at least two surfaces that face towards the handle and that lie in a common first plane. At least a portion of the handle extends linearly and perpendicularly from the first plane to allow a user to draw a straight line which is perpendicular to the first plane.

An auxiliary sheet-metal working device facilitates the completion of bodywork repair and painting operations with the affixing of anagrams, logos and any kind of indications. For this purpose, the device can include a flat platform with one or more rulers on at least one straight edge. In certain embodiments, the auxiliary sheet-metal working device can include at least one movable and/or removable ruler.

The hammer has a head and a handle which extends from the head. The head has at least two surfaces that face towards the handle and that lie in a common first plane. At least a portion of the handle extends linearly and perpendicularly from the first plane to allow a user to draw a straight line which is perpendicular to the first plane.

The hammer has a head and a handle which extends from the head. The head has at least two surfaces that face towards the handle and that lie in a common first plane. At least a portion of the handle extends linearly and perpendicularly from the first plane to allow a user to draw a straight line which is perpendicular to the first plane.

A phlebostatic axis locating device for locating a phlebostatic axis of a homosapien includes a straightedge and a measuring stick. The measuring stick is slidably coupled to the straightedge proximate to a terminus of the straightedge, defining an intersection. The measuring stick extends perpendicularly from the straightedge. The straightedge is configured to position on the fourth intercostal space of a substantially supine homosapien supported on a surface, such that the straightedge is substantially parallel to the surface. The straightedge extends substantially perpendicularly from a centerline of a chest of the homosapien such that the terminus of the straightedge is positioned beyond the chest. An end of the measuring stick is configured to position on the surface, with the measuring stick substantially perpendicular to the surface. A midpoint of a distance between the intersection and the surface is determined. The midpoint corresponds to a phlebostatic axis of the homosapien.

A level and level-straightedge system is provided. The level may include one or more slip-resistant structure. The slip-resistant structure may be a collar formed from a high friction polymer material that at least partially surrounds a level vial. The collar may be co-molded with the material of the vial surround. The level may be a relatively small level having a length less than 14 inches and may include a groove for receiving a straightedge. The groove design alone or in combination with the collar may allow for a relatively short level to support a relatively long straightedge.

A layout tool is provided for use in marking a work piece to be cut. The layout tool includes a generally flat body having an even surface, a linear edge, locating indicia adjacent the linear edge, and a gripper attached to the flat body. The gripper is movable from an initial position. In the initial position, the gripper is generally aligned with the even surface of the flat body. The gripper can be moved toward the work piece from the initial position to engage the work piece when the flat body overlies the work piece.

A layout tool is provided for use in marking a work piece to be cut. The layout tool includes a generally flat body having an even surface, a linear edge, locating indicia adjacent the linear edge, and a gripper attached to the flat body. The gripper is movable from an initial position. In the initial position, the gripper is generally aligned with the even surface of the flat body. The gripper can be moved toward the work piece from the initial position to engage the work piece when the flat body overlies the work piece.

One or more clamping aid tools for mounting to various squares and straight edges, including carpenter squares, framing squares, speed squares or the like, and various straight edges and rulers for easily and accurately positioning various objects, either flat and/or round, magnetic or not. The clamping aid tools can secure these squares and straight edges to various objects while they are being fitted, secured and/or welded together.