DeWalt N421925 Side Handle – Genuine OEM Replacement Angle Grinder Auxiliary Handle
Part Number: N421925
Category: Power Tool Parts → Angle Grinder Parts → Auxiliary Handles
Type: DeWalt N421925 Side Handle – Genuine OEM Replacement Angle Grinder Auxiliary Handle
The DeWalt N421925 Side Handle is a genuine OEM replacement auxiliary handle designed for compatible DeWalt angle grinders. This durable handle threads directly into the grinder's gear housing, providing a secure secondary grip for improved control, stability, and operator comfort during grinding, cutting, and surface preparation tasks. Manufactured to original equipment specifications, it provides a direct-fit replacement for worn, damaged, or missing side handles. The N421925 supersedes the earlier N042463 part number.
Key Features & Benefits
- Part Number: N421925
- Genuine OEM DeWalt replacement part
- Replacement auxiliary side handle for compatible angle grinders
- Ergonomic design for improved grip and comfort
- Threads securely into the grinder housing
- Increases control and stability during operation
- Durable, heavy-duty construction
- Direct-fit OEM replacement
- Supersedes previous part number N042463
Technical Specifications
Part Number: N421925
Manufacturer: DeWalt
Product Type: Auxiliary Side Handle
Material: High-impact polymer with threaded metal insert
Application: Angle Grinder
OEM Part: Yes
Quantity: Sold Individually
Compatible Applications
The DeWalt N421925 Side Handle fits numerous compatible DeWalt angle grinders, including:
DeWalt
- D28065 Type 2
- D28066N Type 1 & Type 2
- D28112 Type 2
- D28114 Type 2
- D28114N Type 2
- D28115 Type 2
- D28115N Type 2
- D28116 Type 1 & Type 2
- D28131 Type 2
- D28140 Type 2
- D28144 Type 2
- D28144N Type 2
- D28402 Type 2
- D28402B Type 2
- D28402K Type 2
- D28402N Type 2
- DWE46044 Type 1
- DWE46066 Type 1
- DWE46101 Type 1
- DWE46102 Type 1
- DWE46151 Type 1
- DWE6401DS Type 1
Always verify your grinder model, type number, and original part number before ordering to ensure proper compatibility.
Function of the Side Handle
The N421925 Side Handle is designed to:
- Provide a secure secondary grip during operation
- Improve control when grinding, cutting, or sanding
- Help reduce operator fatigue
- Increase stability for greater cutting accuracy
- Support safer two-handed tool operation
- Restore the original factory handle configuration
Using a genuine OEM replacement side handle helps maintain safe handling characteristics and optimal control during demanding grinding applications.
Common Signs Replacement Is Needed
Replace the side handle if you notice:
- Cracked or broken handle
- Damaged or stripped threads
- Loose fit during operation
- Excessive wear from heavy use
- Missing auxiliary handle
- Reduced control or user comfort
A damaged or missing side handle can reduce tool stability and make the grinder more difficult to control during operation.
Installation & Service Notes
Disconnect the grinder from the power source or remove the battery before performing any maintenance.
Inspect the threaded mounting hole on the gear housing for dirt or damaged threads. Thread the N421925 Side Handle into the desired mounting position by hand to avoid cross-threading, then tighten it securely until it is firmly seated. Confirm the handle does not loosen during use and periodically check its tightness, especially during heavy grinding or cutting applications.
Important: Always verify your grinder model and original part number before ordering. For maximum control and safety, operate the grinder with the auxiliary handle installed whenever possible.
Maintenance Recommendations
- Inspect the side handle before each use for cracks or thread damage.
- Periodically verify the handle remains securely tightened.
- Keep the threaded mounting points clean and free of debris.
- Replace the handle if it becomes loose, damaged, or stripped.
- Avoid using the handle to pry or lift heavy objects.
- Use genuine OEM replacement parts to maintain factory fit, safe operation, and long-term angle grinder performance.
