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ID AGH125B 5" ELECTRIC ANGLE GRINDER MACHINE [G-240V] [Hitachi Type] - 26549
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The ID AGH125B 5-inch electric angle grinder is a professional-grade, 1200W heavy-duty power tool engineered for demanding metalworking, tile cutting, concrete grinding, and surface fabrication tasks. Featuring a double-insulated body, constant-speed electronics, and a robust metal gearbox, this 240V angle grinder delivers consistent 11,800 RPM performance with a lightweight, ergonomic design built for all-day use. It comes fitted with a Type G British 3-Pin plug, making it ready for immediate use across UAE and GCC markets.
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Professional Power, Precision Control — Built for the Toughest Jobs
- 1200W Motor with 11,800 RPM Rated Speed: The high-performance motor delivers exceptional torque and cutting speed, powering through steel, masonry, tiles, and concrete with ease. Whether you are cutting rebar on a construction site or grinding welds in a fabrication workshop, the motor sustains peak output without overheating or power drop.
- 5-Inch (125mm) Disc Capacity with M14 Spindle Thread: The 125mm disc size provides a larger cutting depth and wider surface coverage than standard 4-inch grinders, significantly improving jobsite efficiency. The universal M14 spindle thread is compatible with a wide range of cutting wheels, grinding discs, flap wheels, and wire brushes, giving you maximum versatility across applications.
- Constant-Speed Electronics Under Load: Unlike basic grinders that lose RPM when pressure is applied, the AGH125B uses constant-speed electronic control to maintain a steady 11,800 RPM throughout the cut. This ensures cleaner, more consistent results and reduces the risk of disc stalling or binding during demanding operations.
- Double Insulation and Compact Metal Gearbox: The double-insulated housing ensures that electrical components are fully isolated from the outer casing, providing critical protection against electric shock in wet or dusty environments. The metal gearbox delivers smooth, efficient power transmission from motor to disc, enhancing long-term durability and reducing vibration during extended use.
- Ergonomic Single-Hand Operation with Adjustable Guard: Weighing just 3 kg and designed for single-hand use, the AGH125B minimizes operator fatigue during prolonged tasks. The tool-free adjustable protective guard can be rotated to any working angle to deflect sparks and debris away from the user, while the dual-position auxiliary side handle mounts left or right for optimal grip and stability. The package includes the machine, an auxiliary handle, a wrench, an auto-stop carbon brush set, and a guide book — everything needed to get started immediately.
General Purchase & Comparison Queries
How does the ID AGH125B compare to a standard 4-inch angle grinder?
The ID AGH125B uses a 5-inch (125mm) disc compared to the 4-inch (100mm) disc on smaller grinders. This larger disc size provides a greater cutting depth and wider surface coverage per pass, making it significantly more efficient for tasks like tile cutting, concrete grinding, and metal fabrication. The 1200W motor and 11,800 RPM also deliver more power than most entry-level 4-inch models, making the AGH125B the better choice for professional and heavy-duty applications.
Is this angle grinder suitable for both professional and DIY use?
Yes. The AGH125B is engineered for professional-grade performance but its lightweight 3 kg body, ergonomic single-hand design, and spindle lock for easy disc changes make it equally accessible for serious DIY users. Whether you are a tradesperson on a construction site or a home workshop enthusiast tackling renovation projects, this grinder delivers the power, safety, and control needed for reliable results.
What plug type does this grinder use, and is it compatible with UAE power outlets?
The ID AGH125B comes fitted with a Type G British 3-Pin plug and is rated for 220–240V at 50/60Hz, which is fully compatible with standard UAE and GCC power outlets. No adapter is required — simply plug in and begin work immediately.
Product-Specific and Usage Queries
What types of discs and accessories are compatible with the AGH125B?
The AGH125B features a standard M14 spindle thread and accepts all 125mm (5-inch) accessories, including cutting wheels, grinding discs, flap wheels, and wire brushes. This universal thread standard means you can use a wide range of aftermarket and branded discs to suit any application — from metal cutting and weld grinding to surface preparation and polishing.
Can the side handle be used on both the left and right side?
Yes. The dual-position auxiliary side handle can be mounted on either the left or right side of the grinder body. This makes the AGH125B comfortable and safe for both left-handed and right-handed operators, and allows you to adjust your grip position depending on the task and working angle for maximum control and reduced fatigue.
What does the constant-speed feature do and why does it matter?
The constant-speed electronic control continuously monitors and adjusts the motor output to maintain a steady 11,800 RPM even when the disc is under load or pressure. Without this feature, grinders can slow down significantly during heavy cuts, leading to uneven results, increased disc wear, and potential stalling. Constant-speed electronics ensure cleaner cuts, longer disc life, and more consistent performance across all materials.
Problem/Solution-Oriented Queries
What should I do if the grinder disc needs to be changed quickly on site?
The AGH125B is equipped with a spindle lock button that immobilises the spindle shaft with a single press, allowing you to loosen and swap discs using the included wrench without needing a second tool to hold the shaft in place. This makes disc changes fast, safe, and manageable even when working alone. Always ensure the grinder is switched off and unplugged before changing any accessory.
How is the grinder protected against electrical hazards on dusty or damp job sites?
The AGH125B features a double-insulated construction, meaning all internal electrical components are fully isolated from the outer housing by two independent layers of insulation. This design eliminates the risk of electric shock even if the primary insulation is compromised, making it significantly safer for use in dusty workshops, construction sites, and environments where moisture may be present. No separate earth connection is required.
The grinder is losing speed under load — what could be causing this?
The AGH125B is designed with constant-speed electronics specifically to prevent speed loss under load. If you are experiencing a noticeable drop in RPM, first check that the power supply voltage matches the rated 220–240V requirement and that the extension cable (if used) is of adequate gauge for the 1200W draw. Also inspect the auto-stop carbon brush set (included in the box) — worn carbon brushes are a common cause of power loss and reduced speed in angle grinders, and replacing them promptly will restore full performance.
Machine (1 Pcs), Guide Book (1 Pcs), Auto-stop Carbon Set (1 Pair), Side Handle (1 Pcs), Wheel Guard (1 Pcs), Lock Nut Wrench (1 Pcs)


