Makita DGA455Z 115mm 18V Cordless Angle Grinder

Brushless motor for efficiency and longer life; no‑load speed around 5700 RPM; 115mm disc diameter; adjustable side handle; two‑finger trigger; anti‑restart; soft start; built‑in dust extraction; spindle lock; built‑in LED light; battery fuel gauge; compatible with Makita 18V Li‑ion batteries.

A brushless motor delivers higher efficiency, more power for the same battery, cooler operation under load, reduced wear, and longer tool life, meaning you can cut and grind longer between charges and with less maintenance.

It includes anti‑restart to prevent accidental starts, soft start to reduce shock on startup, a two‑finger trigger for better control, an adjustable side handle, and an integrated guard. Always wear eye protection, hearing protection, gloves, and a face shield when grinding, and ensure the guard is properly installed.

The integrated dust extraction helps keep your work area cleaner and improves visibility by pulling dust away from the wheel. Use compatible dust collection accessories and ensure the nozzle or guard is connected properly to your vacuum or collection system for best results.

Use the spindle lock to immobilize the spindle, then loosen the clamp nut or screw to remove the old disc and install a new 115mm disc. Re-tighten securely and ensure the disc speed is appropriate for the task.

Metal fabrication tasks such as beveling, deburring, edge grinding, weld seam grinding, and cutting tasks on steel/aluminum; its cordless design is ideal for sites without easy mains power and for overhead or tight spots where a corded grinder would be unwieldy.

Insert a compatible Makita 18V Li‑Ion battery into the tool, attach a suitable 115mm wheel and guard, connect any dust collection accessory if used, then switch on with the safe two‑finger trigger. Start with a light load to reduce startup shock.

Standard 115mm grinding and cutting discs, wheel guards, carbon brushes (as needed for maintenance), dust extraction accessories, and Makita‑authored battery packs and chargers compatible with 18V LXT systems.

For direct comparisons you can also check the Makita DGA452Z 115mm/125mm range and the DGA510Z 125mm option on Fepy: https://fepy.com/product/makita-dga452z-115mm-18v-cordless-angle-grinder and https://fepy.com/product/makita-dga510z-125mm-18v-cordless-angle-grinder. These models offer similar brushless motors with different disc sizes and features.

Yes. You can compare Makita models such as DGA510Z (125mm) and DGA452Z (115mm) on Fepy here: https://fepy.com/product/makita-dga510z-125mm-18v-cordless-angle-grinder and https://fepy.com/product/makita-dga452z-115mm-18v-cordless-angle-grinder.

Consider the need for portability, access to power outlets, and runtime on a single battery. Cordless 18V grinders offer freedom to work anywhere, with the trade‑off of battery life and weight. If you have a constant power source and long continuous use, a corded model may be more economical for extended sessions.

Keep the tool clean and free of dust; use correct discs; perform occasional lubrication if recommended by Makita; regularly inspect the battery and replace worn brushes or worn components; store in a dry place; always follow PPE guidelines and manufacturer instructions.