art to variously employ the present invention in virtually any appropriately detailed structure certain terminology will be used in the following description for convenience in reference only and will not be limiting for example the words 34 top 34 34 bottom 34 34 upper 34 34 lower 34 34 upward 34 34 downward 34 34 rightward 34 and 34 leftward 34 will refer to directions in the drawings to which reference is made the words 34 inward 34 and 34 outward 34 will refer to directions toward and away from respectively the geometric center of the embodiment being described and designated parts thereof said terminology will include the words specifically mentioned derivatives thereof and words of a similar nature fig1 3 of the drawings show a hammer 1 having a head 3 a shaft 5 a handle 7 and a base 9 the head 3 is made of a metal such as steel or some other solid durable and hard material as best shown in fig1 4 the head 3 is of unitary construction and is formed so as to have a central body 11 a claw 13 a shaped area 14 a poll 15 a neck 17 and a striking surface 19 as shown in fig1 3 a bubble type level 21 is enclosed in a case 23 which is in turn enclosed in the central body 11 of the head 3.