is it 4-1/2 x 1/4 x 7/8? I notice it is only described as 4-1/2 x 7/8. Pls help. Tks

Yes. 41/2 diameter x 1/4" thick with a 7/8" hole ( bore)

Is there an adapter to use on a 5/8 inch grinder

should use same arbor back flange and securing nut as an ordinary grinding wheel without threaded arbor, usually comes with grinder

I want to shave a door down about 3/8 inch. Would this work for the job?

mostly, this is used for grinding metals. To cut 3/8" wood, you need a saw not a grinder. Thanks

I think it you used it with a variable speed grinder at the slowest speed it would work for cleaning up the edges. For glass I just use a random orbital electric sander with 100 grit, since glaze is essentially glass, I would use caution on a rough grit.

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⚡ Grind smarter, not harder — stay ahead with DEWALT’s unstoppable flap disc!

BUILT FOR PROS - Trusted DEWALT quality engineered for durability and high-impact grinding tasks.
PRECISION GRIND - Type 29 fiberglass backing ensures the perfect 20-25° angle for smooth, consistent results.
COMPACT POWERHOUSE - 4-1/2 inch diameter fits most angle grinders for versatile, on-the-go performance.
ENDURANCE CHAMPION - Premium abrasive cloth lasts up to 15X longer, reducing downtime and replacement costs.
TURBOCHARGED EFFICIENCY - Zirconia grit delivers 3X faster material removal to power through projects with ease.

The DEWALT DW8309 4-1/2 inch Zirconia flap disc features 80-grit abrasive cloth that removes material 3X faster and lasts 15X longer than traditional fiber resin discs. Its Type 29 fiberglass backing provides an optimal 20-25° grinding angle, making it a durable, high-performance accessory for professional-grade angle grinders.

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Manufacturer	Dewalt
Part number	DW8309
Item Weight	45.4 g
Item model number	DW8309
Size	Pack of 1
Colour	Multi
Style	80G 7/8-Inch Hub
Finish	Brushed
Material	Blend
Pattern	Solid
Shape	Rectangular
Item thickness	4.5 Inches
Power source type	Hand Powered
Item Package Quantity	1
Cutting Diameter	4.5 Inches
Measurement System	Metric
Grit Number	80
Grit Description	80
Included components	4-1/2" x 7/8" 80 Grit Zirconia Flap Disc
Batteries included?	No
Batteries Required?	No
Item diameter	4.5 Inches

DEWALT Flap Disc, Zirconia, 4-1/2-Inch x 7/8-Inch, 80-Grit (DW8309)

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