Grinders
Corded Angle Grinders for Heavy-Duty Tasks
A corded angle grinder earns its place on a jobsite because it never lets you down mid-cut. You connect it up, and it runs at full capacity for as long as you want it to. A corded angle grinder is great for getting a job done quickly - you get a steady output without having to monitor a charge indicator.
Corded grinders show their real value with tough materials. Heavy amperage is drawn by steel, stone, brick, and thick concrete, and a corded unit will draw that amperage without sacrificing RPM. With tuckpointing blades or diamond-cutting discs that require consistent contact to function properly, you will maintain a consistent disc speed from the first cut to the last.
Key Features and Applications of Corded Grinders
The grinder is only as useful as the disc mounted on it. Cutting discs are used for straight cuts in metal, tile, and masonry. Grinding discs are used to clean off excess material, smooth welds, and prepare surfaces before finishing work. Flap discs can be used to blend and sand metal edges. Wire wheels are used to strip paint and rust. Diamond discs provide a clean cut through stone and concrete without the chipping that abrasive wheels can cause. A single grinder can replace three or four different tools in a well-equipped truck, as it can be used with polishing pads and buffing attachments to serve as a finishing machine.
Amperage indicates what a grinder is capable of. For lighter jobs such as trimming rebar or smoothing welds on thin-gauge metal, a 7-10 amp motor is just fine. If you’re dealing with a thick plate or the tool is being used for extended periods of time, go for 13 to 15 amps.
Choosing the Right Corded Grinder for Your Project
Grinder size determines the disc diameter, and the disc determines the grinder's size and, consequently, the type of job it can perform. A 4-1/2" grinder is suitable for light metal work, detail grinding, and tight areas. Bump up to 5 or 6 inches for general fabrication and masonry preparation. If you're doing a large demolition or heavy concrete grinding, go for 7 or 9-inch models - they will provide you with the disc surface and torque needed to clear material fast.
Safety comes first on all job sites. When cutting or grinding, wear eye protection and a face shield, as sparks and debris can travel long distances at high speeds. Gloves and hearing protection are also important, especially when used for long periods. Make sure your disc's rated RPM is at least as high as your grinder's maximum RPM, and use the guard at all times. Grinders with an electric brake halt the disc almost immediately after release, reducing the likelihood of accidental contact. Ensure the cord is not in the cutting path, and check it for nicks or exposed wires before use.
Your Trusted Supplier of Corded Angle Grinders
Tool Academy has been supplying contractors and trades professionals with power tools for over 30 years. The collection includes a wide selection of corded angle grinders ranging from 4-½-inch models for detail work to 9-inch grinders for heavy demolition. Our team can help you select the right corded angle grinder from trusted brands such as Metabo, Milwaukee, Makita, DeWalt, Bosch, and more.
