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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Description

⚙️ Grind smarter, not harder — the DEWALT flap disc that keeps you ahead of the curve!

PRECISION GRIND - Type 29 fiberglass backing ensures the perfect 10-25° angle for flawless finishes without marring.
ENDURANCE CHAMPION - Premium abrasive cloth lasts up to 15X longer, reducing downtime and replacement costs.
LIGHTWEIGHT DURABLE - At just 1.6 ounces, this disc balances durability with effortless handling for professional-grade results.
SEAMLESS COMPATIBILITY - Designed for DEWALT angle grinders, including the DCG416B model, for plug-and-play performance.
TURBOCHARGED EFFICIENCY - Zirconia grit delivers 3X faster material removal to power through projects with ease.

The DEWALT DW8309 4-1/2" x 7/8" 80 grit Zirconia flap disc combines rapid material removal with exceptional durability. Engineered with premium abrasive cloth and a Type 29 fiberglass backing, it offers optimal grinding angles and up to 15 times longer life than traditional discs. Perfectly compatible with DEWALT angle grinders, this lightweight disc is built for professionals demanding speed, precision, and longevity.

Specifications

Grit Material	Zirconia
Product Dimensions	4.5"L x 4.5"W
Brand	DEWALT
Compatible Devices	Angle Grinder
Grit Type	80 Grit (Medium)
Item Thickness	4.5 Inches
Grit Number	80
Construction Type	Grinding
Maximum Rotational Speed	1.33E+4 RPM
Compatible Disc Grinder Tool Models	DEWALT DCG416B
Global Trade Identification Number	00028877310459
UPC	028877310459
Manufacturer	DeWalt
Part Number	DW8309
Item Weight	1.6 ounces
Item model number	DW8309
Is Discontinued By Manufacturer	No
Size	1 Count (Pack of 1)
Color	Multi
Style	80G 7/8-Inch Hub
Finish	Brushed
Material	Blend
Pattern	Solid
Shape	Rectangular
Power Source	Hand Powered
Item Package Quantity	1
Cutting Diameter	4.5 Inches
Measurement System	Metric
Included Components	4-1/2" x 7/8" 80 Grit Zirconia Flap Disc
Batteries Included?	No
Batteries Required?	No
Assembled Diameter	4.5 Inches

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