Abstract: A cutting tool for piercing a sealant surrounding a vehicle windshield including a cylindrically shape body which is internally hollowed and first and second blade housing members which, upon assembly, are axially slidably mounted within a first selected end of the body and form a blade receiving cavity. A blade includes a first insertable portion with at least one aperture and a second cutting portion extending at a desired angle with respect to the insertable portion. A spring loaded tang is mounted within the second blade housing member and is upwardly biased so that an upwardly projecting button portion engages through the at least one aperture of the blade insertable portion in a first blade retaining position. An inwardly displaceable disengaging member is axially slidably mounted within a second selected end of the body and is contoured along a forward face so that it unseats the spring loaded from the blade aperture in a second blade release position.

Abstract: A hand held tool for removing excess urethane sealant from the outer edges of an automotive windshield to facilitate simple replacement of the windshield. The tool generally has a handle, an elongated member with a longitudinal bore partially extending therethrough, and a removable and replaceable blade. The cutting portion of the blade is substantially U-shaped in cross-section with the exposed edges tapered and sharpened. The shape of the blade and its sharpened edges facilitate the cutting and removal of a channel within the urethane sealant in order to allow placement of a strip of plastic moulding which retains the windshield in place.