
Stanley PowerLock
Score: 82/100
Komelon Speed Mark Gripper
Score: 85/100Rankings

The Komelon SM5425 Speed Mark Gripper is a 25-foot tape measure designed for construction and DIY use, featuring an acrylic-coated steel blade with SpeedMark fractional graduations for quick readability. Its ergonomic design with a thick rubber jacket ensures a secure grip, though stand-out length is not specified. It is best suited for construction workers and contractors who need a reliable tape measure for framing, flooring, or general measuring up to 25 feet.

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 |
16 | 25best | |
| ↓ lower better | 181 gramsbest | 317.5 grams |
7 inchesbest | — |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Build & Durability(3) | ||
Warranty | Limited lifetime | Unknown |
Blade Material | Steel with Mylar coating | Acrylic Coated Steel |
Housing Material | Chrome-plated ABS | ABS Plastic |
Dimensions & Range(2) | ||
Measuring Range | 16 | 25 |
Weight (grams) | 181 grams | 317.5 grams |
Performance & Accuracy(1) | ||
Graduations | 1/32 and 1/16 inch | 1/8 Inch |
Features & Usability(2) | ||
Locking Mechanism | Button lock | Positive Lock |
Hook Type | Tru-Zero sliding | Triple Riveted |

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.

“Our gripper feels good, fits comfortably in your hand, and is built with a purpose--to work.”

“When you reach in your tool belt... make sure you feel the Gripper Speed Mark because everything else is substandard.”




Professional reviewers and editors describe the Komelon SM5425 as revolutionary since its introduction in 1999, praising its purpose-built feel and ergonomic design. Retailers and experts emphasize that the SpeedMark feature makes readings quick and easy, positioning the tool as superior to standard tapes for those needing reliable, comfortable performance in a tool belt.
There are no direct consumer reviews or complaints documented in the provided sources. Feedback is inferred as positive based on promotional emphasis on comfort, reliability, and the ease of use provided by the rubber grip and clear markings.