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National Flooring 7in Handheld Angle Grinder
- $294.00
- Brands National Flooring Equipment
- Product Code: 3420
- Availability: In Stock
National Flooring Equipment 7in Handheld Angle GrinderProduct OverviewThe National Flooring Equipment 3420 7in Handheld Angle Grinder is a powerful electric right-angle grinder designed for concrete floor preparation and detailed edge work. Its handheld format makes it practical for areas where larger floor grinders cannot easily reach, including edges and areas close to walls.With a 7-inch grindi..
Powerful 7in Handheld Angle Grinder for Flooring
National Flooring Equipment 7in Handheld Angle Grinder
Product Overview
The National Flooring Equipment 3420 7in Handheld Angle Grinder is a powerful electric right-angle grinder designed for concrete floor preparation and detailed edge work. Its handheld format makes it practical for areas where larger floor grinders cannot easily reach, including edges and areas close to walls.
With a 7-inch grinding capacity, 6,600 RPM operating speed, and 15-amp, 115V motor, the 3420 is suited for demanding surface-preparation tasks such as concrete cleaning, leveling, and removal of mastic, urethane, epoxy, and other coatings.
The grinder also features a convertible polyurethane dust shroud that allows grinding close to the edge while providing a connection point for a dust collector.
Key Features
7-inch grinding capacity – Accommodates grinding discs and diamond turbo cup wheels up to 7 inches.
6,600 RPM – Provides high-speed performance for concrete preparation work.
15-amp motor – Designed for demanding grinding applications.
Convertible polyurethane dust shroud – Helps contain dust and allows detailed edge grinding.
Dust-collection connection – The shroud has a 2-inch vacuum port for connection to a compatible dust collector.
Loop handle – Provides a secure, comfortable grip and improved control.
Right-angle design – Well suited for edge grinding and work in confined areas.
Multiple tooling options – Accommodates various styles of diamond turbo cup wheels.
Handheld operation – Easy to bring directly to areas that are difficult to reach with larger grinders.
Product Specifications
| Specification | Details |
|---|---|
| Brand | National Flooring Equipment |
| Model | 3420 |
| Product Type | Handheld Angle Grinder |
| Grinder Type | Electric Right-Angle Grinder |
| Disc Size | 7 in. / 18 cm |
| Maximum Speed | 6,600 RPM |
| Variable Speed | No |
| Voltage | 115V |
| Frequency | 60 Hz |
| Current Draw | 15 A |
| Weight | 16 lb / 7.3 kg |
| Handle | Loop Handle |
| Dust Shroud | 3440 Polyurethane Convertible Dust Shroud |
| Dust Port | 2 in. |
| Tooling Compatibility | Multiple diamond turbo cup wheel styles |
| Primary Applications | Concrete cleaning, leveling, and coating removal |
National's published weight is for the machine; catalog measurements are stated without tooling attached.
Designed for Concrete Floor Preparation
The 3420 is built specifically around common concrete surface-preparation tasks. It can be used for:
Concrete cleaning
Concrete leveling
Mastic removal
Urethane removal
Epoxy removal
Coating removal
Edge and perimeter grinding
Detailed preparation near walls
Its handheld design makes it a useful complement to a larger floor grinder, particularly when working on areas that require more direct control.
Convertible Dust Shroud
One of the main features of the 3420 is its 3440 polyurethane convertible dust shroud. The shroud is designed to allow detailed grinding close to the edge while helping control airborne dust.
A 2-inch vacuum port allows the grinder to be connected to a compatible dust collector. National Flooring Equipment recommends pairing its handheld grinders with the DL2000 dust collector for dust-management applications.
Loop Handle for Better Control
The included loop handle provides a secure grip while operating the grinder. This is particularly useful when working along edges or in confined areas where maintaining consistent control over the grinding head is important.
National also notes that the loop handle can improve control, help reduce swirl marks, and lessen operator fatigue during operation.
7-Inch Tooling Capacity
The 3420 accepts grinding tooling up to 7 inches in diameter. The operating manual specifies that the machine accommodates standard 5/8-inch arbor discs up to 7 inches.
National Flooring Equipment also states that the grinder accommodates multiple styles of diamond turbo cup wheels, giving users flexibility when selecting tooling for different concrete-preparation requirements.
Typical Applications
The National Flooring Equipment 3420 is suitable for:
Concrete Preparation
Use the grinder to clean and prepare concrete surfaces before applying coatings, flooring systems, or other finishes.
Concrete Leveling
The high-speed grinding action can help address uneven areas and localized surface irregularities.
Coating Removal
The grinder can be used to remove materials such as:
Mastic
Urethane
Epoxy
Other concrete coatings
Edge Grinding
The convertible shroud and handheld format make the 3420 particularly useful for grinding close to walls and along floor edges.
What Is Included
The standard 3420 package includes:
National Flooring Equipment 3420 7in Handheld Angle Grinder
Loop handle
3440 polyurethane convertible dust shroud
Grinding wheels and other application-specific tooling should be selected separately unless included by the particular seller or package configuration.
Dust Collection Recommendation
For dusty concrete-grinding applications, connecting the 3420 to a suitable dust collector can help create a cleaner working environment and reduce cleanup.
The grinder's convertible shroud provides a 2-inch dust-collection connection, and National recommends its DL2000 dust collector as a companion for the 3420 and other handheld grinders.
Important Operating Notes
The 3420 is a high-speed power tool intended for trained and properly equipped operators. Always select grinding tooling appropriate for the material being worked on and follow the manufacturer's operating and safety instructions.
Appropriate eye protection, hearing protection, respiratory protection where required, and other jobsite-specific PPE should be used. The operating manual also emphasizes reading and understanding the equipment instructions before use.
Why Choose the 3420?
The National Flooring Equipment 3420 offers a practical combination of high-speed grinding performance and handheld control. Its 7-inch capacity provides substantial coverage for a handheld grinder, while the convertible dust shroud allows the operator to work close to edges and connect the machine to a dust-collection system.
For contractors performing concrete preparation, coating removal, and edge grinding, it provides a convenient solution for detailed work that complements larger floor-preparation equipment.
Product Summary
The National Flooring Equipment 3420 7in Handheld Angle Grinder is a 115V, 15-amp electric right-angle grinder operating at 6,600 RPM. It accepts tooling up to 7 inches, weighs 16 lb, and includes a loop handle and 3440 convertible polyurethane dust shroud.
Quick Specifications
Model: 3420
Disc Size: 7 in. / 18 cm
Speed: 6,600 RPM
Voltage: 115V
Frequency: 60 Hz
Amperage: 15 A
Weight: 16 lb / 7.3 kg
Variable Speed: No
Dust Shroud: 3440 polyurethane convertible shroud
Dust Port: 2 in.
Handle: Loop handle
Main Uses: Concrete cleaning, leveling, edge grinding, and mastic, urethane, epoxy, and coating removal