Best Plumb Bobs of 2025

Harry Stack Avatar
Harry Stack
Last Updated: Jan 13, 2025

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Plumb bobs are an essential tool for anyone working in construction, carpentry or any other field that requires precise measurements. These small, weighted objects are suspended from a string or a line and are used to establish a vertical reference point, ensuring that walls, posts, and other structures are perfectly straight. Plumb bobs come in a variety of sizes and shapes, from traditional brass or steel models to modern laser-guided versions. They are easy to use, highly accurate, and indispensable for achieving professional results in any building project.

At a Glance: Our Top Picks

Swanson Tool Co PB008B Brass Plumb Bob Cover #TOP 1
Swanson Tool Co PB008B Brass Plumb Bob
ftb score rating icon 9.9
General Tools 790-8 Hexagon Steel Plumb Bob Cover #TOP 2
General Tools 790-8 Hexagon Steel Plumb Bob
ftb score rating icon 9.8
TAJIMA Plumb Bob Setter - 14 oz (400g) Cover #TOP 3
TAJIMA Plumb Bob Setter - 14 oz (400g)
ftb score rating icon 9.6

Top 10 Plumb Bobs

#TOP 1

Swanson Tool Co PB008B Brass Plumb Bob

Swanson Tool Co PB008B Brass Plumb Bob Cover
Swanson Tool Co PB008B 8 ounce Brass Plumb Bob with String

The Swanson Tool Co PB008B Brass Plumb Bob is a durable tool made of solid brass with a replaceable hardened steel tip, and a lacquered finish to resist corrosion. It has a removable head for easy string attachment, ties to any string or line, and comes with a 20' string and hook. It is a precision accurate tool that is useful for excavation contractors, surveyors, and foundation contractors.

What We Like
Nice machining quality
Replaceable tips
Includes hanging string
8oz model for shorter distances
What We Don't Like
No spare tip included
No storage case
#TOP 2

General Tools 790-8 Hexagon Steel Plumb Bob

790-8
Steel
8 Oz
General Tools 790-8 Hexagon Steel Plumb Bob Cover
General Tools 790-8 Hexagon Steel Plumb Bob, 8 Ounce

General Tools Plumb Bob is a professional quality tool that is ideal for masonry, carpentry, and surveying. It features a hexagonal body made of cold-drawn steel with nickel plating, and a removable cord cap for easy replacement. The plumb bob weighs 8 oz, is 4 inches long and 7/8 inches wide, and comes with a 10-foot long 3mm braided cord for convenience.

What We Like
Accurate and reliable
Well-weighted design
Rust resistant
Good price point
Simple and effective tool
What We Don't Like
Flimsy string quality
Thread hole size issues
#TOP 3

TAJIMA Plumb Bob Setter - 14 oz (400g)

PZB-400GP
14-Ounce
TAJIMA Plumb Bob Setter - 14 oz (400g) Cover
TAJIMA Plumb Bob Setter - 14 oz (400g) Magnetic Plumb-Rite with 14.5 ft Auto Recoil Cord & Quick-Stabilizing Bob - PZB-400GP

The TAJIMA Plumb Bob Setter - 14 oz (400g) is a commercial-grade plumb bob that features a quick-stabilizing 14-ounce bob that steadies within 6 seconds. It also includes a setting pin for wood/drywall, a strong magnet for steel surfaces, and a hook for nails or studs. The plumb bob has a 14.5 ft self-retracting line for quick, easy storage and an elastomer-wrapped setter for added drop protection and secure grip.

What We Like
Great quality and functionality
Compact and portable design
Easy to use in various settings
Strong magnet for secure positioning
What We Don't Like
Small size might limit visibility
#TOP 4

Johnson Level & Tool 08 Steel Hexagonal Plumb Bob

Johnson
1 Count (Pack of 1)
Johnson Level & Tool 08 Steel Hexagonal Plumb Bob Cover
Johnson Level & Tool 08 Steel Hexagonal Plumb Bob, 8 oz., Steel Finish, 1 Pack

The Johnson Level & Tool 08 Steel Hexagonal Plumb Bob is a practical tool used for establishing a straight vertical or plumb line by connecting it with a string. Its hexagonal machined body prevents it from rolling off, ensuring accurate measurements, improving work quality along with maximum efficiency and safety. Made from durable, high-quality steel, it has a corrosion-resistant steel plated finish that adds to its lifespan. The installation is simple, and it can be used for a variety of indoor and outdoor applications, including carpentry, masonry, surveying, and fencing.

What We Like
Affordable price
Easy to use
Durable and heavy
Traditional technology
Helpful for precise measurements
What We Don't Like
String not included
#TOP 5

AWF PRO Plumb Bob Kit

AWF 5000
AWF PRO Plumb Bob Kit Cover
AWF PRO Plumb Bob Kit - 16 oz and 8 oz Solid Brass Plumb Bobs, 14 ft Retractable Line Reel with Magnetic Base, 2 Pencils, Pencil Sharpener, Carrying Case

The AWF PRO Plumb Bob Kit is a high-quality kit that comes with two precision-made solid brass plumb bobs, a 14 ft retractable line reel with a magnetic base, two pencils, a pencil sharpener, all packaged in an attractive, durable, zippered protective case. The plumb bobs have 2 replaceable steel tips and use the same interchangeable caps and tips, making switching sizes quick and easy. The retractable line reel comes with a bright orange braided nylon cord, rare earth magnets, and a fold-out bracket to hang the reel. The kit is easy to use and offers great value.

What We Like
High-quality materials
Accurate measurements
Great customer service
Convenient storage pouch
Includes useful accessories
What We Don't Like
Retractable line shorter than expected
Minor issues with string tangling
#TOP 6

Stanley 8-Ounce Brass Plumb Bob

47-973
Multi
One Size
Stanley 8-Ounce Brass Plumb Bob Cover
Stanley 47-973 8-Ounce Brass Plumb Bob

The Stanley 8-Ounce Brass Plumb Bob, manufactured in Taiwan, is a reliable tool for framing, deck building, plumbing, transit location, and construction applications. Its screw top simplifies the attachment of string to the center of the plumb, while its polished-lacquer solid brass construction resists rust. The thru-hole ensures easy tightening, and the replaceable, hardened steel tip provides longer life, with an extra tip included. It weighs 8 ounces and comes with a lifetime limited warranty.

What We Like
Durable brass construction
Precision engineering for accuracy
Includes spare tip
Versatile for various applications
Aesthetic appeal
What We Don't Like
Does not include string
Takes time to settle down
#TOP 7

STANLEY Plumb Bob, Brass, 16-Oz (47-974)

47-974
STANLEY Plumb Bob, Brass, 16-Oz (47-974) Cover
STANLEY Plumb Bob, Brass, 16-Oz (47-974)

The STANLEY Brass Plumb Bob is a durable and rust-resistant tool thanks to its polished-lacquer, solid-brass construction. Its replaceable, hardened steel tip ensures long-lasting performance. With the screw top, attaching the string to the center of the plumb is made simple and convenient. The plumb bob also features a through hole for easy tightening. This tool is perfect for ensuring accurate vertical alignment in construction and carpentry projects. The durable construction and long-lasting tip make it a reliable tool for professionals and DIY enthusiasts alike. The screw top and through hole add convenience to the process, making it easier to use. With the STANLEY Brass Plumb Bob, you can achieve precise measurements and save time on your projects.

What We Like
Well-machined brass construction
Includes replacement tip
Settles quickly and hangs straight
Ideal weight for breezy conditions
Easy to attach string
What We Don't Like
Does not include string
Made in Taiwan
#TOP 8

SitePro 15-032 32 Oz Brass Plumb Bob

15-032
SitePro 15-032 32 Oz Brass Plumb Bob Cover
SitePro 15-032 32 Oz Brass Plumb Bob

The SitePro 15-032 32 Oz Brass Plumb Bob is a precision machined tool that weighs 32 oz (907G) and is treated for a lasting finish. It comes with a steel asa screw cap that allows storage for an extra point (not included) and includes a hardened steel point with asa thread. This plumb bob is perfect for ensuring verticality in construction and other projects.

What We Like
Well made and durable
Limits motion in light breeze
32 oz weight effective
Improves accuracy on projects
What We Don't Like
May not perform well in high winds
#TOP 9

Plumb Bob Magnetic with Retractable String and Locators

plumb bob
14.5ft(4.5m)
10.7oz(305g)
Plumb Bob Magnetic with Retractable String and Locators Cover
HCCMLOVE Plumb Bob Magnetic -10.7 oz(305g) Plumb Rite With 14.5 ft(4.5m) String,Sharpener,2 Pencils,Line Reel Used in Construction Can Automatically Stretch the Line and Quickly Stabilize the Plumbob

The Plumb Bob Magnetic is a versatile tool that can be used in various construction activities. It has a high-quality quick stabilization 10.7-oz bob that steadies within 6 seconds for establishing a perfect vertical line. The plumb bob is retractable, adapts to different specifications of plumb bobs, and maintains balance quickly. It includes positioning pins for wood/drywall, strong magnets for steel surfaces, and hooks for nails or studs. The locator wrapped in elastic material provides additional drop protection and a firm handle. The plumb bob setter comes with a 14.5 ft. self-retracting line and 10.7oz(305g) plumb bob.

What We Like
Strong magnet
Self-retracting plumb bob
Easy to use
Good measurement accuracy
Durable case included
What We Don't Like
May get misplaced
#TOP 10

Johnson 132 Plumb Bob, 32 oz.

Johnson
Black
32 oz.
Johnson 132 Plumb Bob, 32 oz. Cover
Johnson Level & Tool 132 Plumb Bob, 32 oz., Brass Finish, 1 Pack, Black

The Johnson Plumb Bob is an essential tool for anyone needing precise vertical alignment. Its hardened steel tip ensures accurate measurements, helping you achieve the best results in your projects. The durable brass-plated body not only provides longevity but also resists corrosion, making it suitable for both indoor and outdoor use. You will appreciate the easy installation feature, as the removable cap allows you to quickly attach or replace a string, saving you valuable time on the job site. This plumb bob is ideal for carpentry, masonry, surveying, and fencing tasks, enhancing your work's efficiency and safety.

What We Like
Sharp, removable tip
Durable construction
Great weight
Attractive design
What We Don't Like
Not solid brass
Tip unscrews easily
Buying Guide Image

A Guide to Selecting the Best Plumb Bobs

When you work on metal, you need a magnet. There are some tools, which come with magnets that are stuck to them. Other types do not have magnets. This is why you will have to improvise.

You can use duct tape in order to hold it in the right position. You put the thing on the bar to let the string hang from the edge. Before you opt to buy a plumb bob from the market or from an online store, you have to take into consideration a few important factors.

To make sure that you buy the best tool, follow these guidelines, which will help you choose the right type of plumb bob for your work. Read on!

Uses Purpose

Remember, you must think first why you need a plumb bob. If you are an engineer or DIY worker, then in both cases, you need a different kind of plumb bob. For instance, being a civil engineer, you need more precision and thus can ignore the price of the size of the tool.

On the other hand, if you need this tool for your DIY project, you should consider both the weight and size of the tool so that you can easily carry it around.

Plumb Bob Material

The material for this type of tool is typically metal. If you are looking for something heavy, you need to buy the one that is made of brass. The lighter ones are usually made of steel material.

If you are working outdoors, you need a heavy plumb bob because it can be handy enough. The reason is that the lightweight plumb bob can be swayed easily by the breeze in outdoor locations. For indoors, you can go for a lightweight tool as it takes less time for settling and you can easily carry it in the toolbox.

Type of String

The thread used for this tool is vital because when it is too stretchy, then the accuracy of the plumb bob will be hampered. If it is absorbing a lot of moisture from the air, then it will get stretched.

If the thread has twisted ropes, then it can be spun. If the line is stiff, then it will cause the vertical line to get bent a little. If you are going to buy an inexpensive version, then you might get in trouble.

Price of the Plumb bob

Lastly, the tool is simple to use and there are very few reasons for purchasing an expensive one when you can easily get your job done with an affordable tool. Good Luck!

Frequently Asked Questions (FAQs)

1. What are the rules for plumb bob?

To use a plumb bob, hold the cuboid with the plumb line running through it at the top of the measured plane and let the bob drop down to the base. Make sure the plumb line is undisturbed and parallel to the surface. The bob should neither rest on the surface nor be set apart from it.

2. Do people still use plumb-bobs?

Yes, plumb bobs are still used today despite the availability of spirit levels and lasers. They are useful for drawing long straight lines, ensuring wallpaper is glued straight, or checking the alignment of large warehouse shelves.

3. What are the disadvantages of a plumb bob?

One disadvantage of a plumb bob is that the replaceable tip and other screw-on parts are small and can be easily misplaced or lost in a toolbox.

4. Why use a plumb bob instead of a level?

A plumb bob is used to align things properly using gravity. It consists of a weight, usually with a pointed bottom, connected to a string or plumb line. The weight follows the path of gravity and hangs straight down from the top, allowing for accurate vertical measurements.

Editor's Notes

During our plumb bob research, we found 24 plumb bob products and shortlisted 10 quality products. We collected and analyzed 27,533 customer reviews through our big data system to write the plumb bobs list. We found that most customers choose plumb bobs with an average price of $14.48.

The plumb bobs are available for purchase. We have researched hundreds of brands and picked the top brands of plumb bobs, including Swanson Tool Co., Inc, General Tools, Tajima, Johnson, AWF PRO. The seller of top 1 product has received honest feedback from 385 consumers with an average rating of 4.7.

Written by
Harry Stack Avatar

Harry Stack owns a small hardware store, his career landed him a depth of knowledge in categories such as tools, equipment, machinery and hardware. In his spare time, he usually repairs furniture, safes and appliances, and he knows how to make simple repairs to plumbing or electrical fixtures. His hobbies also include woodworking and fishing.