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Readability Features
- Starrett satin chrome blades and protractor heads for easier reading are available (on 12" sizes)
- Direct reading 0-180° in opposite directions, permitting the direct reading of angles and supplementary angles
Ease-of-Handling Features
- Reversible lock bolt allows choice of which graduated side of the blade faces the operator
- The No. 12 is non-reversible, meaning the blade is on the outside of the frame, so the frame stays on the same side of the workpiece
- The No. 490 and No. 491 are reversible, meaning there is a shoulder on both sides of the blade, allowing the tool to be reversed so the same angle can be scribed or measured left and right
Long-Life and Accuracy Features
- Protractor heads are made of stable cast iron and finished with a choice of attractive black wrinkle finish or smooth black finish
- Tempered steel blades with accurate, machine-divided graduations
- A spirit level indicates when the base reference surface is level. This handy feature is not readily available on other comparable protractors
Bevel Protractors - Nos. 490, 491 Series Reversible
Range: 0-180°
| Catalog No. |
EDP No. |
Description |
List Price |
| 490-12-4R |
52511 |
12”, 4R Grad, Reversible, Black Smooth |
109.00 |
| 490-12-16R |
52518 |
12”, 16R Grad, Reversible, Black Smooth |
116.00 |
| 490-18-4R |
52512 |
18”, 4R Grad, Reversible, Black Smooth |
138.00 |
| 490-24-4R |
52513 |
24”, 4R Grad, Reversible, Black Smooth |
152.00 |
| PR-1224S |
52515 |
Protractor Head, Black Smooth Finish, Reversible |
77.00 |
| C490-12-4R |
52514 |
12”, 4R Grad, Reversible, Black Smooth, Chrome Turret |
124.00 |
| CPR-1224S |
52516 |
Protractor Head, Black Smooth Finish, Reversible, Chrome on Turret |
80.00 |
| 491-12-4R |
52521 |
12”, 4R Grad, Reversible, Black Wrinkle |
108.00 |
| 491-12-16R |
52526 |
12”, 16R Grad, Reversible, Black Wrinkle |
116.00 |
| 491-18-4R |
52522 |
18”, 4R Grad, Reversible, Black Wrinkle |
138.00 |
| 491-24-4R |
52523 |
24”, 4R Grad, Reversible, Black Wrinkle |
152.00 |
| C491-12-4R |
64602 |
12”, 4R Grad, Reversible, Black Wrinkle, Chrome Turret |
124.00 |
| CPR-1224W |
64601 |
Protractor Head, Black Wrinkle Finish, Reversible, Chrome on Turret |
80.00 |
| 491ME-300 |
52524 |
300mm, Metric, Reversible, Black Wrinkle |
114.00 |
| PR-1224W |
52525 |
Protractor Head, Black Wrinkle Finish, Reversible |
75.00 |
Bevel Protractors - No. 12 Series Non-reversible
Range: 0-180°
| Catalog No. |
EDP No. |
Description |
List Price |
| 12-12-4R |
50103 |
12”, 4R Grad |
98.00 |
| C12-12-4R |
64290 |
12”, 4R Grad, Satin Chrome Blade |
107.00 |
| C12-12-4R W/SLC |
66931 |
12”, 4R Grad, Satin Chrome Blade w/Standard Letter of Certification |
147.00 |
| 12-18-4R |
50104 |
18”, 4R Grad |
122.00 |
| 12-24-4R |
50105 |
24”, 4R Grad |
139.00 |
| 12ME-300 |
50106 |
300mm, Metric/English |
103.00 |
J.W. Donchin Co.
 Ph: 773-261-2182 • Fax: 773-261-2867 • Email: sales@jwdonchin.com
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