Patent ID: 7249391

Claim:
A tool for unlocking a locked grain drill depth adjustment assembly comprising a grain drill depth adjustment plate, a spring-loaded locking pin, and a pivot shaft/bearing assembly, repositioning the depth adjustment plate and allowing the depth adjustment assembly to be re-locked with the depth adjustment plate in an alternate position, the tool comprising: a lever having a top portion and a bottom portion; a key member having a locking notch and one or more key member stops, the key member attached to the bottom portion of the lever such that the key member is capable of being at least partially received within a square-shaped aperture of the grain drill depth adjustment plate; and a support member having a plurality of protrusions positioned on the support member such that the plurality of protrusions correspond with a plurality of elongated apertures of the grain drill depth adjustment plate and are capable of being at least partially received within the plurality of elongated apertures of the grain drill depth adjustment plate when the key member is at least partially received within the square-shaped aperture of the grain drill depth adjustment plate, the plurality of protrusions further capable of fully compressing the spring-loaded pin of the grain drill depth adjustment assembly after the plurality of protrusions are fully received within the plurality of elongated apertures of the grain drill depth adjustment plate, the support member attached to the bottom portion of the lever.