Description
Product Overview
The Tesa Universal Dial Protractor is a precision angular measurement instrument built for the toolroom bench — combining a circular dial readout with a versatile blade arrangement that makes reading compound angles fast, repeatable, and far less prone to parallax error than a traditional vernier bevel protractor. If you’re setting up bevel gears, checking taper angles on a lathe compound, or verifying chamfer angles on ground components, this is the instrument that earns its keep.
- Dial-read angular measurement to 5-minute resolution — The circular dial face replaces the vernier scale of a conventional bevel protractor, giving you a clear, direct reading without the eye strain of counting fine vernier divisions under workshop lighting. At 5-minute (5′) graduation, it’s precise enough for the vast majority of toolroom angular work where degree-and-minute accuracy is required.
- Full 360° measurement range — The instrument measures any angle from 0° to 360°, meaning you’re not forced to flip or reposition the blades to tackle obtuse or reflex angles. This is a genuine time-saver when checking internal and external bevels on the same component setup.
- Hardened and ground blade construction — The straight blades provide a reliable ground reference edge for accurate contact against machined surfaces. Ground blades hold their flatness in service and resist the wear that plagues cheaper stamped alternatives, keeping your measurement edge honest over years of use.
- Adjustable blade configuration with locking screws — The main and auxiliary blades are independently adjustable and lock down firmly, allowing the instrument to be set to a known angle and used as a direct reference for scribing, setting, or gauging — useful when transferring angles to a sine bar setup or checking a batch of components.
- Ideal for — setting compound slide angles on a manual lathe, checking taper plug and ring gauge angles, verifying dovetail slide angles on milling machines, inspecting bevel gear tooth angles, setting up angled vices and tilting tables on surface grinders, and scribing accurate angular layout lines in toolmaking.
Condition
Used (Good Condition / Pre-owned, Functional)
This Tesa Universal Dial Protractor presents well for a used instrument. The dial mechanism operates smoothly, the pointer moves freely without sticking, and the blade locking screws engage and hold as intended — which is the core functional requirement for this type of instrument. The ground blade edges show the kind of light patina and minor handling marks you’d expect from a toolroom instrument that’s actually been used; there are no visible chips, burrs, or deformation to the reference edges that would compromise contact accuracy. The dial crystal (or cover) is intact with no cracking that would interfere with reading. As with any pre-owned dial protractor, it is good practice to verify the zero against a known reference square before putting it into critical measurement service — a simple check against a precision ground parallel or a reliable engineer’s square will confirm the instrument is reading true. The original wooden case, instruction papers, and original accessories are all present, which is increasingly uncommon for instruments of this age and is a strong indicator that this set has been looked after.
Included:
- 1 x Tesa Universal Dial Protractor (complete instrument with dial head and blades)
- 1 x Original wooden storage case
- 1 x Original instruction / specification papers (French language, consistent with Tesa’s Swiss/European origin)
- Original accessories as supplied (as visible in case)
Not included: No additional setting masters or calibration certificates are included. Calibration certificate not supplied — buyer should verify zero and angular accuracy against a known reference prior to use in certified inspection work.
Brand Information
Tesa is a Swiss precision metrology manufacturer founded in 1941 and headquartered in Renens, Switzerland — part of the Hexagon Manufacturing Intelligence group. Tesa sits firmly in the top tier of global metrology, alongside Mitutoyo, Mahr, and Starrett, and their instruments are standard equipment in calibration laboratories, aerospace toolrooms, and high-precision manufacturing environments worldwide. Swiss manufacture is the hallmark here: tight tolerances on the dial mechanism, quality material selection, and instruments built to remain accurate in long-term service — which is precisely why a used Tesa instrument is still a worthwhile acquisition for the Australian toolroom.
Specifications
| Feature | Specification |
|---|---|
| Brand | Tesa |
| Type | Universal Dial Protractor |
| Measuring Range | 0° – 360° |
| Graduation / Resolution | 5 minutes (5′) |
| Dial Readout | Circular dial with pointer — direct reading, no vernier interpolation required |
| Blade Construction | Hardened and ground steel blades |
| Blade Configuration | Adjustable main and auxiliary blades with locking screws |
| Country of Origin | Switzerland |
| Construction / Housing | Metal dial head with machined body |
| Condition | Used (Good Condition) |
| Included Items | Instrument, original wooden case, instruction papers, original accessories |
| Not Included | Calibration certificate |
Keywords
Tesa dial protractor, Tesa universal protractor, Swiss dial protractor, precision bevel protractor, angular measurement tool, toolroom protractor, dial bevel gauge, angle measurement metrology, machinist protractor 5 minute, taper angle gauge, surface grinder setup tool, compound angle measurement
