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ID HQ SERIES ARMATURE [ID AG801] [ID AG812] [DW801] ANGLE GRINDER SPARE PART [Makita Type] - 29006
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Restore Full Power — The Precision Armature Your Grinder Deserves
ID HQ Series Armature is a precision-engineered angle grinder spare part compatible with DeWalt-type grinders including the DW801, ID AG812, and ID AG801 models. Designed to convert electrical energy into mechanical rotation, this replacement armature features a high-grade magnetic core, precision copper winding, and a machined commutator, restoring your grinder to full factory performance. With a weight of 433g, it is a direct-fit OEM-type component built for professional workshop and industrial use.
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- Direct Compatibility with DW801, ID AG812 & ID AG801: This armature is engineered as a direct-fit OEM-type replacement for DeWalt-type angle grinders. No modifications required — simply swap out the worn armature and restore your tool to factory-spec performance. Compatible model references include ID AG801N and ID AG812HQ variants.
- Precision Copper Winding for Maximum Efficiency: The armature features tightly wound high-conductivity copper coils that minimise electrical resistance and heat build-up during operation. This ensures efficient energy-to-torque conversion, reducing the risk of premature motor failure even under sustained heavy-duty use.
- Robust Magnetic Core for Consistent Torque Output: Built around a laminated magnetic core, the armature maintains stable rotational force across varying load conditions. The lamination design reduces eddy current losses, improving overall motor efficiency and extending the operational lifespan of your angle grinder.
- Machined Commutator for Smooth, Long-Lasting Brush Contact: The precision-machined commutator segments provide a uniform contact surface for the carbon brushes, reducing arcing and sparking. This results in quieter operation, reduced brush wear, and a significantly longer service interval between maintenance cycles.
- CE-Certified & Professionally Packaged: This armature carries CE (Machine Test) certification, confirming compliance with European machinery safety directives. It is supplied as a single unit (1 Pcs), ready for immediate installation. With a net weight of 433 grams and SKU 29006, it is easy to identify and reorder for workshop stock management.
- Built for Professional Workshop Demands: Whether you're running a power tool repair centre, managing industrial maintenance, or servicing tools in the field, this armature is designed to withstand the rigours of professional use. Its high-performance materials and tight manufacturing tolerances ensure a reliable, long-lasting repair every time.
This armature is supplied as 1 piece and holds CE (Machine Test) certification, confirming it meets the required safety and performance standards for professional power tool applications.
General Purchase & Comparison Queries
Is this armature compatible with my DeWalt DW801 angle grinder?
Yes. This armature (SKU 29006) is specifically engineered as a direct-fit replacement for the DeWalt DW801 and compatible ID-series angle grinders including the ID AG801, ID AG801N, ID AG812, and ID AG812HQ. It is an OEM-type component, meaning no modifications are required for installation.
Is this an original DeWalt part or an aftermarket replacement?
This is a high-quality aftermarket replacement armature manufactured to OEM specifications. It is designed to match the original dimensions, winding specifications, and performance characteristics of the factory armature. It carries CE (Machine Test) certification, confirming it meets international safety and performance standards — making it a reliable and cost-effective alternative to the original part.
What is included in the package?
The package includes one (1) armature unit (SKU: 29006, net weight: 433g). This is a spare part only — the angle grinder body, carbon brushes, and other components are not included. If you require additional spare parts such as carbon brushes or field coils, please browse our full range of angle grinder spare parts.
Product-Specific and Usage Queries
How do I know if my armature needs to be replaced?
Common signs of a failed or failing armature include: the grinder not starting or starting intermittently, excessive sparking from the brush area, a burning smell during operation, significant loss of power or speed, and visible damage such as burnt windings or a scored commutator surface. If you observe any of these symptoms, replacing the armature is typically the most effective repair.
Can this armature be installed without professional tools?
Installation requires basic power tool disassembly skills and standard hand tools (screwdrivers, snap ring pliers). The armature is a direct-fit replacement, so no machining or modification is needed. However, if you are not confident working with power tool internals, we recommend having the repair carried out by a qualified power tool technician to ensure correct reassembly and safe operation.
What certifications does this armature hold?
This armature is CE (Machine Test) certified, confirming compliance with European machinery safety directives. CE certification ensures the component has been tested to meet defined electrical and mechanical safety standards, making it suitable for professional and industrial power tool repair applications.
Problem/Solution-Oriented Queries
My angle grinder runs but has very low power — will replacing the armature fix this?
Low power output is one of the most common symptoms of a worn or partially shorted armature winding. When the copper windings degrade, the motor cannot generate sufficient torque, resulting in reduced RPM and cutting performance. Replacing the armature with this precision-wound replacement unit will restore the motor's full power output, provided the field coil and carbon brushes are also in good condition.
There is heavy sparking inside my grinder — is the armature the cause?
Excessive sparking is typically caused by a worn or damaged commutator, shorted armature windings, or severely worn carbon brushes. Start by inspecting and replacing the carbon brushes first, as these are a lower-cost consumable. If sparking persists after a brush change, the commutator surface on the armature is likely damaged and the armature should be replaced. This unit features a precision-machined commutator that provides a clean, uniform contact surface to eliminate abnormal sparking.
My grinder stopped working completely after heavy use — can a new armature bring it back?
A complete stoppage after heavy use often points to a burnt-out armature winding — a common failure mode when a grinder is overloaded or run without adequate ventilation. If the tool shows no response (or only a hum with no rotation), the armature is the most likely culprit. Replacing it with this ID HQ Series Armature (SKU 29006) is a cost-effective repair that can fully restore your DW801, ID AG812, or ID AG801 grinder to working condition, at a fraction of the cost of a new tool.
4" & 4.5" Angle Grinder Armature (1 Pcs)


