Abstract: An oil filter canister gripping tool (9) is hereby disclosed to assist in the removal and installation of an oil filter (10) on an automobile engine or similar engine and is composed of a relatively flexible strip of U-shaped material (1) having a metal band (2) attached perpendicularly thereto and located near the open ends of the arms of the U-shaped material (1) with said metal band (2) having an adjusting mechanism (4) associated therewith for tightening the band (2) securely around various size oil filter canisters (10). The U-shaped metal strip (2) having a hand-grasping area (8) located between the two arms of the U-shaped metal strip (1) enabling an individual to physically grip said hand grasping area (8) of the wrench (9) and thus permitting the rotational installation and removal of an oil filter canister (10) by means of wrist action.

Abstract: An angle measuring apparatus (10) for determining the angular orientation of the external surface of an article (100) relative to a known reference plane wherein the apparatus (10) includes two separable housing members (15) (16) having indicia (20) (20') representative of angular orientations with regard to the horizontal and vertical planes respectively wherein the housing members (15) (16) slideably surround a stack (40) of slideable strips (41) bearing discrete markings (42); whereby the strips will conform to the surface of an article (100) such that the discrete markings (42) will produce a visual indication of the angular disposition of the article surface relative to a known reference plane; and wherein at least one of the housing members (15) is provided with a transparent sealed chamber (70) which is operatively associated with the indicia (20') for giving a visual indication of the angular orientation of the housing member (15).