Performance Tool M547 Micro Die Grinder 1/8 Inch
- 54000 rpm pencil grinder, pneumatic
- 1/8 inch micro die grinder style
- Stone set, oiler and air hose per the highlight line
- 13.3 x 1.7 x 7.5 inches, silver
- 1 year warranty
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A high-speed air pencil grinder for detail work such as porting, polishing and deburring. The highlight line says an accessory kit is included, but the contents field lists only the grinder.
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ASIN: B004B9I9AOModel: M547Category: Power Grinders
Overview
Performance Tool supplies this compact pneumatic micro die grinder for detail porting and light finishing. The highlight line lists a stone set, an oiler and an air hose, while the included components field names only the grinder.
Very high speed in a slim pencil body suits fine work in tight places, and the listed uses cover grinding, polishing, sanding and deburring. The limitation is the contradiction over what ships, so the buyer should confirm the kit.
Who it's for
People polishing, deburring or porting small parts with an air supply on hand have a clear match. Buyers who need confirmed accessories, or a tool for heavy stock removal, should check the seller details first.
Pros and cons
- Very high free speed
- Compact pencil body
- Wide list of uses
- Kit contents disagree between fields
- Needs compressed air
- Air consumption not listed
Performance notes
A pneumatic motor reaches its top speed only when the air supply matches it, so hose size and compressor output decide the real result. The speed is fixed, as the minimum and maximum are listed the same. Light contact with small stones suits the tool better than heavy pressure.
Specifications
| Brand | Performance Tool |
|---|---|
| Model | M547 |
| Dimensions & fit | |
| Item dimensions | 13.3 x 1.7 x 7.5 inches |
| Capacity & performance | |
| Maximum Rotational Speed | 54000 rpmhigher than 97% of 95 power grinders |
| Minimum Speed | 54000 rpm |
| Power & efficiency | |
| Power Source | Pneumatic |
| Construction & materials | |
| Color | Silver |
| Included components | |
| Included Components | 1/8" Micro Die Grinder |
| Warranty & support | |
| Manufacturer Warranty Description | 1 year |
| Other details | |
| Style Name | 1/8 inch micro die grinder |
| Recommended Uses For Product | Grinding, polishing, sanding, deburring |
| Other Special Features Of The Product | Compact |
Closest rivals on specs
Frequently asked questions
How do I lubricate the Performance Tool M547?
The highlight line says an oiler is included, but the listing gives no oiling schedule. Check the manual for the lubrication steps.
What comes with the Performance Tool M547?
The highlight line lists a 10-piece stone set, an oiler and an air hose. The included components field names only the micro die grinder, so confirm with the seller.
Is the Performance Tool M547 electric?
No. The power source is pneumatic, so it needs compressed air.
What can the M547 be used for?
The listing recommends grinding, polishing, sanding and deburring, and calls it a pencil grinder for detail porting.