US PRO Tools 5" 125mm Air Angle Grinder - 8425
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eBayUS PRO AIR ANGLE GRINDER 5"" CUT OFF TOOL HEAVY DUTY COMPRESSOR TOOL NEW 8425
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Air Angle Grinder by US PRO TOOLS 5"" (125mm) Disc Centre Bore 22.2mmFree delivery in 1–3 days£44.95Visit shop →
OnBuy.comUs Pro Tools 5" 125Mm Air Angle Grinder Grinding 10,000 Rpm & Disc 8425
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Us Pro Tools 5" 125Mm Air Angle Grinder Grinding 10,000 Rpm & Disc 8425 5060599865737Free delivery in 1–3 days£37.09Visit shop →
Product Information
Full details
The US PRO Tools 5-inch Air Angle Grinder (8425) is designed for automotive technicians, metal fabricators, and serious DIY enthusiasts who require a heavy-duty pneumatic tool for frequent grinding and cutting applications. It delivers high performance with its 10,000 RPM free speed and robust motor, though it requires a stable, high-capacity air compressor to maintain consistent operation throughout demanding tasks.
All features
| Model Part Number | 8425 |
|---|---|
| Brand | us pro |
Extended Product Information
FAQs
What is the required air pressure for this tool?
This tool operates optimally at 90 PSI.
Does it come with any accessories?
Yes, the package includes one 5 inch x 1/2 inch x 7/8 inch grinding disc.
What is the bore size for the grinding discs?
The tool is compatible with discs featuring a 22.2mm bore.
How do I maintain the motor?
Apply a few drops of air tool oil into the 1/4 inch BSP air inlet before each use.
Is this tool suitable for heavy-duty metal grinding?
Yes, with a 10,000 RPM speed and a robust build, it is designed for consistent grinding and cutting tasks.
How much does the unit weigh?
The grinder weighs approximately 1.9kg.
Troubleshooting
Tool feels sluggish or lacks power
Check your compressor pressure to ensure a steady 90 PSI and verify that the air hose is not kinked or restricted.
Excessive vibration during operation
Ensure the grinding disc is properly centered on the 22.2mm bore and the locking nut is tightened securely.
Air leaking from the tool handle
Check the air inlet fitting for tight threads and apply fresh PTFE tape if necessary.
Pros and Cons
Pros
- High 10,000 RPM speed for fast material removal
- Balanced design reduces hand fatigue during extended operation
- Standardized bore size allows for easy accessory replacement
- Durable construction suitable for professional workshop environments
Cons
- Requires a compressor capable of consistent 90 PSI output
- Pneumatic power requires a dedicated airline setup
- Heavier than smaller pneumatic die grinders
Setup, Compatibility & Care
To set up the tool, attach a 1/4 inch BSP male fitting to the air inlet. Ensure your compressor is set to a constant 90 PSI to achieve optimal efficiency. For maintenance, it is critical to lubricate the internal motor by adding a few drops of air tool oil into the air inlet before every use. Always inspect the grinding disc for cracks or chips before mounting it. When finished, store the tool in a dry, clean area away from moisture to prevent internal corrosion of the air motor.