• Compound: Yes
• Length (Inch): 6"
• Width (Inch): 12"
• Height (Inch): 4-1/8"
Compound sine plates include two end rails and two straps for locking angle settings. Made of hardened steel, each compound sine plate has 0.002" deep step for minute angles and tapped holes in top plate. Squareness and parallelism 0.0003".