What is the accuracy specification associated with measuring horizontal angles throughout the 360 degree circle using the DW092PK Transit Level? Support November 18, 2020 15:39 Updated Follow The horizontal scale accuracy is rated +/- 1 degree. Related articles The manual says that I need a Hex wrench to adjust the bubble vial on my DW096PK. I did not get a hex wrench. How can I get one? Comments 0 comments Please sign in to leave a comment.