Z type Angle Plate.- Made of quality graded caste iron Precision ground from all sides/ faces for perpendicularity/ squareness. One base side of the Caste iron has 2 x Counter drills with suitable stud bolts to clamp the slide and the other has a continuous slot to fasten it through the lathe's toolpost stud. Check all pictures carefully Suitable for mounting the mini vertical slide on your mini lathe to match the center heigh.