Precision Angle Block 10pcs Set 1-30deg.

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Used for setting and checking angles. Achieve a highly accurate setup with these precision ground steel angle blocks (more accurate than any protractor). Angles included in the set : 1°, 2°, 3°, 4°, 5°, 10°, 15°, 20°, 25° & 30°. Individual blocks can be stacked to set any angle in 1° increments up to 115°. Angle Accuracy: ±20 arc seconds (±0.0056°). Length: 3". Thickness: 1/4". Hardness: HRC52-58. The angles are etched onto each block for easy identification. Packed in a padded plastic storage case. Show more