3M
3M 61500129913 Bristle Disc 1 in 5/8 in Trim 80 Grit Yellow
Ceramic bristle disc for finishing aluminium, brass, bronze, cast iron, stainless steel and steel on straight grinders, drill presses and pencil grinders up to 30,000 RPM
- TypeFinishing Tool Parts & Accessories
- Ceramic bristles resist loading on aluminium and stainless steel
- 80 grit removes burrs without gouging the workpiece
- Quick-change TR connector swaps discs in seconds on straight grinders
- 1-inch diameter reaches tight contours and drilled holes
- Rated for 30 000 RPM on drills and pencil grinders
3M Bristle Disc 1 Inch 80 Grit
The 3M 61500129913 bristle disc is a 1 inch diameter cup brush with ceramic bristles for surface finishing. It fits straight grinders, drill presses and pencil grinders using a quick-change TR connector. The yellow disc targets aluminum, brass, bronze, cast iron, stainless steel and steel workpieces. Maximum operating speed is 30,000 RPM.
Quick-change mounting and common fit issues
The TR quick-change system locks the disc onto compatible tools without tools. Installation fails when the tool spindle lacks a matching TR receiver or when the disc is forced onto an incompatible arbor. Running above 30,000 RPM can cause bristle separation and unsafe vibration. Always verify the tool accepts the quick-change interface before mounting.
Check tool compatibility and material suitability
Confirm your straight grinder, drill press or pencil grinder uses a TR quick-change receiver. Ensure the workpiece material matches the listed metals: aluminum, brass, bronze, cast iron, stainless steel or steel. The 80 grit ceramic bristles suit general finishing on these substrates; they are not intended for non-metallic materials. Verify the tool speed does not exceed 30,000 RPM.
Highlights
- Ceramic bristles resist loading on aluminium and stainless steel
- 80 grit removes burrs without gouging the workpiece
- Quick-change TR connector swaps discs in seconds on straight grinders
- 1-inch diameter reaches tight contours and drilled holes
- Rated for 30 000 RPM on drills and pencil grinders
Specifications
| Type | Finishing Tool Parts & Accessories |
|---|---|
| Brand | 3M |
Questions about this item
How can I verify the bristle disc is performing correctly on my straight grinder?
The disc should run smoothly up to 30 000 RPM without vibration and produce an even finish on aluminium, brass, bronze, cast iron, stainless steel or steel.
What comes in the box and do I need a separate quick-change holder?
The package contains the yellow ceramic bristle disc with a TR quick-change connector; a compatible quick-change holder for your straight grinder, drill press or pencil grinder must be purchased separately.
Which grit and bristle length should I choose for general deburring on stainless steel?
The P80 grit with 5/8 in bristle trim is designed for aggressive deburring and finishing on stainless steel and the other listed metals.
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