Q: Does it measure both inside and outside angles?
Yes, it measures inside and outside angles across a full 360° range in 0.1° increments.
88N9900 - Digital Protractor
Useful in any workshop, this versatile digital tool makes it easy to read, transfer or set angles with speed and precision. Ideal for layout, measuring trim corners, or for machine set-up, it consists of two overlapping 0.05" thick 8 1/2" stainless-steel arms with a digital LCD readout at the pivot.
Accurate to within ±0.3°, it measures inside and outside angles over a full 360° range in 0.1° increments. The readout zeroes at any position, and the arms lock at any angle for direct transfer. Because the arms overlap, the offset is just enough to register one arm against the edge of the work, yet not enough to distort measurements significantly when using both on a plane surface.
The arms are graduated on one edge with two 7" rules zeroed at the inside corner (when the arms are at an angle of 270°) and form a continuous 15 1/2" rule on the other edge when set at 180°. The scales are etched and black-filled for wear resistance and legibility. Runs up to 2000 hours on one button-cell battery (included).
Excellent value in a versatile measuring tool.
Yes, it measures inside and outside angles across a full 360° range in 0.1° increments.
The digital protractor is accurate to within ±0.3°, precise enough for layout, trim measuring or machine set-up work.
Yes, one button-cell battery is included and runs for up to 2000 hours before it needs replacing.
Unlike a mechanical bevel gauge that only transfers an angle, this tool reads the exact angle digitally and can zero out at any starting position, making it easier to measure a relative angle between two surfaces.
The overlap creates a small offset that lets one arm register flush against the edge of the workpiece without the offset throwing off the angle reading on a flat surface.
| Materials | Stainless steel |
| Dimensions | 8 1/2" arms, 0.05" thick; forms a 15 1/2" continuous rule at 180°; graduated in two 7" rules |
| Power Source | Button-cell battery (included) |
| Includes | Digital protractor; button-cell battery |
| Package Quantity | 1 item |
| Warranty | Lee Valley Satisfaction Guarantee |
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Digital Protractor
Useful in any workshop, this versatile digital tool makes it easy to read, transfer or set angles with speed and precision. Ideal for layout, measuring trim corners, or for machine set-up, it consists of two overlapping 0.05" thick 8 1/2" stainless-steel arms with a digital LCD readout at the pivot.
Accurate to within ±0.3°, it measures inside and outside angles over a full 360° range in 0.1° increments. The readout zeroes at any position, and the arms lock at any angle for direct transfer. Because the arms overlap, the offset is just enough to register one arm against the edge of the work, yet not enough to distort measurements significantly when using both on a plane surface.
The arms are graduated on one edge with two 7" rules zeroed at the inside corner (when the arms are at an angle of 270°) and form a continuous 15 1/2" rule on the other edge when set at 180°. The scales are etched and black-filled for wear resistance and legibility. Runs up to 2000 hours on one button-cell battery (included).
Excellent value in a versatile measuring tool.
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