Main specs
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Manufacturer Part Number
491-12-4R
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Specification
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Measuring Range
0 to 180 deg
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Graduations
4R - 8ths, 16ths, Quick-Reading, 32nds, 64ths
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Blade Size
12 in L x 1 in W x 3/32 in THK
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Features
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Direct reading 0 - 180 deg in opposite directions, permitting the direct reading of angles and supplementary angles
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Protractor heads are made of stable cast iron and finished with a choice of attractive black wrinkle finish or smooth black finish
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Tempered steel blades with accurate, machine-divided graduations
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A spirit level indicates when the base reference surface is level - a feature not usually available on comparable protractors
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Reversible lock bolt allows choice of which graduated side of the blade faces the operator
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Reversible, there is a shoulder on both sides of blade, allowing the tool to be reversed so the same angle can be scribed or measured left and right
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Regular finish blade
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3-1/4 in H x 1-9/64 in W
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Starrett® satin chrome blades and protractor heads for easier reading are available (on 12 in sizes)
Competitor Information
| Competitor Name |
Competitor Part Number |
| Grainger |
26Y709 |
| MSC |
86419991 |
| Fastenal |
3124220 |
Additional Information
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Alternative Part Number
52521
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Standards/Approvals
PROP65: This product contains a chemical known to the State of California to cause birth defects or other reproductive harm
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