
Klein Tools 935RBLT Lighted Torpedo Level
Score: 92/100
Bosch GLL50-20
Score: 78/100Rankings

The Klein Tools 935RBLT is a 9-inch magnetic lighted torpedo billet level constructed from professional-grade aluminum with a high-visibility orange finish. It features rare-earth magnets with a patented secure track, three LED-illuminated vials for multi-angle readability, and a V-groove for round surfaces. Best suited for professional tradespeople working in low-light or demanding jobsite conditions.

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 | ![]() | ![]() |
|---|---|---|
9 inchesbest | 4.1 inches | |
3best | 0 | |
1.8 inches | 2.5 inchesbest | |
0.75 inches | 3.9 inchesbest | |
| ↓ lower better | 0.7 lbsbest | 0.77 lbs |
— | 2 yearsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Performance & Accuracy(1) | ||
Accuracy | 0.029 degrees | ±5/16 inch at 30 feet |
Dimensions & Size(4) | ||
Length (inches) | 9 inches | 4.1 inches |
Width (inches) | 1.8 inches | 2.5 inches |
Height (inches) | 0.75 inches | 3.9 inches |
Weight (lbs) | 0.7 lbs | 0.77 lbs |
Build & Durability(1) | ||
Frame Material | Aluminum | Rubber/Plastic |
Warranty & Support(1) | ||
Warranty Period (years) | Lifetime years | 2 years |
Features & Functionality(3) | ||
Vial Count | 3 | 0 |
Level Type | Torpedo Level | Cross-Line Laser |
V-Groove | true | false |
Power & Electronics(1) | ||
Power Source | Battery | Battery (AA/Li-Ion) |

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

Professional reviewers and editors consistently praise the Klein Tools 935RBLT for its precision and build quality, awarding it top picks for magnetic torpedo levels. Experts highlight the rare-earth magnets and LED-illuminated vials as critical features for electricians and plumbers working in low-light or confined spaces.
Everyday users and consumers express high satisfaction with the product's magnetic strength and durability, frequently noting that it sticks securely to metal surfaces. Users appreciate the LED lighting for working in dark areas like crawlspaces and attics. However, recurring complaints focus on the tool's weight and thickness for pocket carry, as well as the battery consumption rate of the LED feature.

“Magnets are insanely strong-sticks to steel beams like glue”

“LED lights make it usable in crawlspaces or at night with crystal-clear vials even overhead”

“Tough as nails; survived drops and water exposure”




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.