Precision Angle Block 17pcs 0, 0.25-45deg.

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: 0.25°, 0.5°, 1°, 2°, 3°, 4°, 5°, 10°, 15°, 20°, 25° 30°, 35°, 40° & 45° plus two 0° riser blocks 0.5" and 0.75" high.
• Individual blocks can be stacked to set angles in 1/4° increments.
• 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 plastic storage case.