General Tools Protractor and Angle Finder #39
Stainless Steel, Outside, Inside, Sloped Angles, 0° to 180°
Price as of 2026-06-18. Check Amazon for the current price.
Quick Decision
Is This Right For You?
- •Those who want a top-rated option — in the top 18% of protractors by rating
- •Elite Medical Instruments EMI EMI Goniometer 3 Piece Set 12" offers a better rating (4.8/5) at a similar or lower price ($10)
- •Outus Angle Protractor Angle Finder Ruler Two Arm — 52% cheaper at $9 (Score A)
- •LEXIVON [2-pack] Aluminum Miter Saw Protractor — higher rated at 4.8/5 ($40)
📊 Based on data analysis of 91 products in this category.
Mubboo Score: B+
How we calculate the Mubboo Score
Quality (45%): customer rating, normalized to a 10-point scale
Popularity (35%): review volume vs the category leader, log-scaled
Value (20%): price position vs other protractors
Computed from live Amazon rating, review count, and price across 91 protractors · last refreshed 2026-06-18.
How It Compares
This Product General Tools Protractor and Angle Finder #39 | Most Popular LEXIVON [2-pack] Aluminum Miter Saw Protractor | Best Rated Elite Medical Instruments EMI EMI Goniometer 3 Piece Set 12" | Best Value Outus Angle Protractor Angle Finder Ruler Two Arm | |
|---|---|---|---|---|
| Price | $17.83 | $39.97 | $9.99 | $8.59 |
| Rating | 4.6/5 | 4.8/5 | 4.8/5 | 4.4/5 |
| Reviews | 626 | 9,039 | 639 | 945 |
| Mubboo Score | B+ | A- | A | A |
What People Say
Synthesized from 40 reviews · 100% verified purchases.
Buy from Amazon directly to avoid counterfeit products; check for accuracy immediately as some units arrive miscalibrated. For digital models, note battery quirks and consider ease of reading versus durability.
- Accuracy and Precision
- Ease of Use and Clear Readability
- Solid Build Quality
- Effectiveness for Trim and Molding Work
- Good Value for the Price
- Inconsistent Accuracy and Quality Control
- Design Flaws and Missing Features
- Concerns About Durability and Cheap Materials
- Poor Manufacturer Support for Defective Units
Related Video Reviews
About General Tools
- 6 products in our database
- Average rating: 4.5/5 across all products
- Price range: $6.99 – $299.99
- Categories: Carbon Monoxide Detectors, plumb-bobs, protractors
Other protractors
Bottom Line
General Tools Protractor and Angle Finder #39 earns Mubboo Score B+. Priced at $18 — a mid-range option, below the category average of $29. Rated 4.6/5 from 626+ reviews. Strong buy if: those who want a top-rated option. Skip if: elite medical instruments emi emi goniometer 3 piece set 12" offers a better rating (4.8/5) at — LEXIVON [2-pack] Aluminum Miter Saw Protractor (Score A-, $40) may fit better.
Frequently Asked Questions
Is the General Tools Protractor and Angle Finder #39 worth buying in 2026?
It earns a Mubboo Score of B+, with a 4.6/5 rating from 626 reviews — better than 82% of protractors we track.
How much does the General Tools Protractor and Angle Finder #39 cost?
It is currently $17.83 — mid-tier pricing for protractors.
How does the Protractor and Angle Finder #39 compare to other protractors?
The category's most-reviewed alternative is the LEXIVON [2-pack] Aluminum Miter Saw Protractor (4.8/5, 9,039 reviews, $39.97). The Protractor and Angle Finder #39 carries a Mubboo Score of B+ vs A-.
Sources & References
Mubboo may earn a commission on purchases made through affiliate links. This does not affect our Mubboo Score, product rankings, or editorial judgments. Prices are accurate as of the last sync (2026-06-18) and may change.