
Klein Tools 935AB4V Magnetic Torpedo Level
Score: 88/100
Bosch GLL50-20
Score: 78/100Rankings

The Klein Tools 935AB4V is a 6.25-inch ACCU-BEND magnetic torpedo level designed for electricians and tradespeople to achieve precise leveling on conduit, pipe, and metal surfaces. It features a durable aluminum body, four multi-angle vials, and powerful rare-earth magnets with a patented track. Best suited for electricians and plumbers needing precise angles on pipe and conduit.

The Bosch GLL50-20 is a compact, self-leveling cross-line laser designed for indoor tasks with a 50-foot range. Its main trade-off is the red beam's limited visibility in bright light compared to green-beam models. It is best suited for DIYers and light-trade professionals handling indoor leveling tasks.
| Attribute | ![]() | ![]() |
|---|---|---|
6.25 inchesbest | 4.1 inches | |
4best | 0 | |
1.476 inches | 2.5 inchesbest | |
0.75 inches | 3.9 inchesbest | |
| ↓ lower better | 0.36 lbsbest | 0.77 lbs |
1 years | 2 yearsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Performance & Accuracy(1) | ||
Accuracy | 0.029 | ±5/16 inch at 30 feet |
Dimensions & Size(4) | ||
Length (inches) | 6.25 inches | 4.1 inches |
Width (inches) | 1.476 inches | 2.5 inches |
Height (inches) | 0.75 inches | 3.9 inches |
Weight (lbs) | 0.36 lbs | 0.77 lbs |
Build & Durability(1) | ||
Frame Material | Aluminum | Rubber/Plastic |
Warranty & Support(1) | ||
Warranty Period (years) | 1 years | 2 years |
Features & Functionality(3) | ||
Vial Count | 4 | 0 |
Level Type | Torpedo | Cross-Line Laser |
V-Groove | true | false |

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

Professional reviewers and editors praise the 935AB4V as a top-tier conduit level, highlighting its strong magnets, compact design, and multi-angle vials. Editors specifically recommend it for professional use due to its role in simplifying conduit bending.
Everyday users consistently praise the powerful magnets, accuracy, and durability of the level, noting that it stays put on conduit during bends and survives jobsite abuse. Common praise includes the compact size for pocket storage and clear vials for quick reads.




Professional reviewers describe the Bosch GLL50-20 as 'jobsite tough,' praising its IP55 rating and durable rubber housing for withstanding professional abuse.
Everyday users and DIYers express strong satisfaction with the product's ease of use and reliability, noting its compact size and dependable performance on jobsites.