Best Riv Nut Tool Kits for Automotive, Metalworking, and DIY Projects
The best riv nut tool kit depends on your work area, preferred thread sizes, and how many inserts you need. The WOBANK 16-inch kit is best for broad metric and SAE coverage, while the compact 8-inch WOBANK is suited to tight spaces. AOBEN offers a quick-change design, ASKWAY supplies a large selection of metric nuts, and SundownAura covers metric sizes through M12.
| Kit | Best For | Notable Contents |
|---|---|---|
| WOBANK 16-inch | Wide size coverage | 12 mandrels, 230 nuts |
| AOBEN 14-inch | Frequent mandrel changes | 6 mandrels, 90 nuts |
| ASKWAY pressure kit | Metric insert inventory | 430 metric nuts |
| SundownAura metric set | Metric repairs up to M12 | 7 mandrels, 70 nuts |
| WOBANK 8-inch | Tight or angled workspaces | 8 mandrels, 160 nuts |
WOBANK 16-Inch Rivet Nut Tool Kit

Best for: Buyers who need a wide range of both metric and SAE sizes. This professional-style kit includes 12 mandrels covering metric M3 through M12 and SAE sizes from 10-24 to 1/2-13, plus 230 rivet nuts. A multi-functional wrench, gloves, and a carrying case are also listed among the included items.
The tool has 16-inch handles and an automatic-release design that the product description says releases the nut after two to three squeezes. Its carbon-steel handle and curved, rubber-coated grip are intended to support leverage and handling. It was selected for its broad size range and substantial assortment of inserts. Limitation: The longer tool may be less convenient than compact options in confined work areas.
AOBEN 14-Inch Quick-Change Rivet Nut Tool

Best for: Users who regularly switch between the included sizes. AOBEN lists a quick-change head and spring-loaded mandrel lock pin, along with two lock pins, six mandrels, and 90 rivet nuts. Its metric sizes are M6, M8, and M10; SAE sizes are 1/4-20, 5/16-18, and 3/8-16.
The 14-inch steel arms and compound hinges are designed to provide leverage, while the tool is described as more compact than a 16-inch model. This kit was selected for buyers who want a balance between arm length and a faster mandrel-change approach. The M6 mandrel is installed in the tool when supplied, according to the product details. Limitation: It includes fewer size options and nuts than the broader WOBANK kit.
ASKWAY Metric Rivet Nut Kit With 430 Inserts

Best for: Buyers who prioritize having a large supply of metric rivet nuts. The listed assortment contains 430 inserts: 160 M3, 110 M4, 70 M5, 70 M6, and 20 M8. The product description also lists a manual pressure rivet nut installer and describes the nuts as galvanized carbon steel with a knurled flat-head design intended to resist slipping.
This kit was selected for furniture work, home repairs, automotive tasks, and other projects that use its listed metric sizes. The emphasis is on insert quantity and size-specific stock rather than a large collection of mandrels. Limitation: The listed range stops at M8 and does not include SAE sizes, so it may not suit jobs requiring larger or inch-based threads.
SundownAura M3–M12 Metric Tool Set

Best for: Metric-focused repairs that may require sizes up to M12. The kit includes seven mandrels for M3, M4, M5, M6, M8, M10, and M12, plus 70 matching rivet nuts—10 for each size. Its listed applications include sheet metal, thin steel, aluminum panels, and brackets.
This set was selected for its straightforward metric coverage and matched supply of inserts across seven sizes. Rivet nuts can create threaded fastening points in panels where access to the back is limited, as described in the product information. Limitation: The kit lists 70 nuts total, fewer than the larger-assortment options, and does not list SAE mandrels.
WOBANK 8-Inch Compact Rivet Nut Kit

Best for: Work in narrow spaces, overhead positions, or angled locations. This 8-inch right-angle tool includes eight mandrels: M3, M4, M5, M6, 6-32, 8-32, 10-24, and 1/4-20. The kit also lists 160 nuts, a step drill, wrench, gloves, manual, and double-sided case.
The product description highlights a force-saving lever and ergonomic handle for confined work such as vehicle, cabinet, and furniture gaps. It was selected because its shorter format directly addresses access limitations that larger tools may present. The listed mandrels use SCM435 Cr-Mo steel, and the handles are specified as 50# carbon steel. Limitation: Its size range does not include larger metric sizes such as M8 through M12.
Buying Guide: How to Choose a Riv Nut Tool Kit
Which thread sizes do you need?
Check the fasteners required by your project before choosing a kit. Metric-only work may fit the ASKWAY or SundownAura options, while mixed metric and SAE projects may be better served by the WOBANK 16-inch or AOBEN kit. Compare the exact listed sizes; a similar-looking size designation is not necessarily interchangeable.
Will you work in a tight space?
Tool length affects access and leverage. The 8-inch WOBANK is specifically described for narrow or angled work areas. Longer handles, such as the 14- and 16-inch designs, may offer more leverage but can be harder to position in restricted spaces.
How many inserts should the kit include?
Consider how often you install rivet nuts and whether you need a supply across multiple sizes. ASKWAY lists the most inserts in this selection, with 430 metric nuts. SundownAura supplies fewer inserts but provides 10 for each of its seven metric sizes. Confirm that the included quantities match your expected workload.
What else should you compare?
Look at mandrel-changing features, included accessories, and the materials specified in the product description. A quick-change head may be useful when switching sizes frequently. A case, wrench, or step drill may also be convenient, but included accessories differ by kit. Follow the product manual for installation and use.
Frequently Asked Questions
What does a rivet nut tool do?
A rivet nut tool installs a threaded insert into a suitable panel, creating a fastening point for a screw or bolt. The tool sets the insert from one side of the material.
Are metric and SAE rivet nut mandrels interchangeable?
No. Select the mandrel and insert size specified for the fastener and project. Metric and SAE thread sizes use different designations and should not be treated as equivalent.
Which kit is best for tight spaces?
The 8-inch WOBANK kit is the most compact option listed here and is described for narrow, overhead, and angled work.
Which option includes the most rivet nuts?
The ASKWAY kit lists 430 metric rivet nuts, with quantities distributed across M3, M4, M5, M6, and M8.
Do all these kits include both metric and SAE sizes?
No. WOBANK 16-inch and AOBEN list metric and SAE mandrels. ASKWAY and SundownAura list metric sizes, while the compact WOBANK kit includes both metric and SAE sizes within its specified range.