
Stanley PowerLock
Score: 82/100
Irwin Combination Square
Score: 85/100Rankings

The IRWIN Combination Square 12" is a versatile measuring tool featuring a durable stainless steel blade and cast zinc body. It is designed for accurate 90° and 45° markings, depth gauging, and angle transfers. It is best suited for DIYers and contractors needing a reliable, budget-friendly tool for general construction tasks.

The Stanley 33-158 is a 16-foot dual-scale tape measure designed for job-site durability with a chrome-plated ABS case. Its standout distance is limited to 7 feet, which may affect stability on longer reaches. It is ideal for general contractors and DIY users needing reliable, dual-scale measurements up to 16 feet.
| Attribute | ![]() | ![]() |
|---|---|---|
| ↓ lower better | — | 0.1best |
16best | 12 | |
| ↓ lower better | 181 gramsbest | 408 grams |
7 inchesbest | — | |
— | 1best |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Build & Durability(2) | ||
Blade Material | Steel with Mylar coating | Stainless Steel |
Housing Material | Chrome-plated ABS | Cast Zinc |
Dimensions & Range(2) | ||
Measuring Range | 16 | 12 |
Weight (grams) | 181 grams | 408 grams |
Performance & Accuracy(1) | ||
Graduations | 1/32 and 1/16 inch | 1/16-inch |
Features & Usability(1) | ||
Locking Mechanism | Button lock | Reversible lock bolt |

Products in the top-left offer the best value (high score, low price).

Search results lack direct expert reviews or editorials for the 33-158 model. However, specifications emphasize reliability for professional use through features like the impact-resistant case and Mylar blade. Similar PowerLock models are described as having durable construction for extended blade life and easy locking.
No consumer reviews or feedback appear in the search results, preventing analysis of common praise or complaints from everyday users.




Professional reviewers praise the IRWIN Combination Square as a well-made and accurate tool, highlighting its rust-proof blade and practical features like the level and scriber.
Consumer feedback is sparse, with no aggregated ratings or detailed testimonials found in the available sources.