1 / 5IRWIN 1794153 9-Inch Magnetic Torpedo Level
Inch: IRWIN 1794153 is a manual magnetic torpedo level with an aluminum body, dual-sided plumb viewing and a claimed 1.5° slope button for pipe drainage. Its rare-earth magnets are intended to hold it hands-free on steel, while the B-tank valve key adds a task-specific feature for acetylene or B/MC tank valves.
At a glance
- Rare-earth magnets are claimed to be 5x stronger than strip magnets, for hands-free work on steel.
- Dual-sided Plumb Site viewing is designed to make plumb readings easier to see.
- A slightly radiused 1.5° slope button is intended to sit securely on pipe for 1/4-inch-per-foot drainage.
- The listing describes 22.5° and 45° vials for common angle checks and a B-tank valve key for acetylene or B/MC valves.
Reference price: $37.99
Price checked: Nov 13, 2026
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Pros and cons
Pros
- Magnetic attachment can leave both hands free when working on steel surfaces.
- Pipe-oriented slope button and tank valve key add functions beyond basic bubble leveling.
- Aluminum construction keeps the listed weight to 136 g.
Technical specifications
9 specifications| Brand | IRWIN |
|---|---|
| Model | 1794153 |
| Dimensions listed | 41L x 42W millimeters |
|---|---|
| Weight listed | 136 g |
| Material listed | Aluminum |
|---|---|
| Colour | Blue |
| Measurement type | bubble |
|---|---|
| Measurement units | degree |
| Operation mode | Manual |
What to know before buying
Listing details to confirm
The listing title specifies a 9-inch level, while its included-components text calls it a 9-inch 250 magnetic torpedo. Separately, the listed dimensions of 41L x 42W millimeters do not explain the stated 9-inch length. Confirm the selected listing's exact size and configuration before buying.
What’s in the box
Included- 9-inch 250 magnetic torpedo level
Who is it for?
A good fit for
- Tradespeople or DIY users who need a compact magnetic level for steel work or pipe positioning.
- Buyers who can use dual-sided plumb viewing, common-angle vials or the stated tank-valve key.
Less suited to
- Anyone who needs a stated accuracy tolerance or wants consistent independent confirmation of durability and stability.
Customer reviews on Amazon
- 5 stars
76% 76% - 4 stars
14% 14% - 3 stars
5% 5% - 2 stars
1% 1% - 1 star
4% 4%
Customer feedback describes the level as functional on pipes and often praises magnetic strength, versatility and material quality. Feedback is mixed on durability, accuracy and stability, which matters if readings must be dependable over time. The listing provides no accuracy tolerance, so buyers needing a specified precision should look for one before choosing it. The aggregate ratings are mostly five-star, but they do not resolve those specific concerns.
Positive themes
- Customers describe it as working well on pipes and praise the magnetic hold.
- Feedback also appreciates its versatility and material quality.
Mixed feedback
- Customer feedback is mixed on durability, accuracy and level stability.
Frequently asked questions
Can this level attach to steel without being held?
The listing says its rare-earth magnets allow hands-free work on steel. The actual holding strength on a particular surface is not specified.
What is the slope button for?
The listing describes an integrated 1.5° button for 1/4-inch-per-foot drainage and says its slight radius helps the level sit securely on pipe.
Does it include a tank valve key?
The feature description says a B-tank valve key is provided for acetylene or B/MC tank valves. The supplied component list names only the level, so check the selected listing's package details.
What size is the level?
The title calls it 9-inch, but the listed dimensions are 41L x 42W millimeters and the component description uses 9-inch 250 wording. Confirm the exact size before ordering.
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