Precise Compound Sine-Plates

• Made of quality steel, hardened to 55-62 RC.
• Tapped holes in top.
• Minute angle step 0.200 built into the front gage block roll - eliminates steps in the base plate.
• Two end rails and one locking strap included.
• Center of distance of rolls with 0.0001" #SPC-612 within 0.0003".
• 0-60½ capacity.