• 6" and 12" rules with 16th and 32nd scales • 16ths scale has left to right and centering rule with small drilled holes every 1 / 16 " • 32nds scale has left to right rule with small drilled holes every 1 / 16 " • 3" scale on top, 2" rule at the bottom from 1 / 2 " to 2 1 / 2 " • Angle markings and drilled holes in the center from 0° - 90° - 0° in 15° increments plus a 22.5°, 25° and 67.5° • Accuracy: ±0.002" • 5" L x 1" H sliding base with 1" scale markings on rear side • 2 mm solid aluminum frame with a protective anodized finish • Precision laser engraving • Two removable metal locking screws • Set supplied in New and Improved heavy-duty shop case and includes a free mechanical pencil with lead refills.