What is the outside diameter of the 21mm socket? With and without the protecting sleeve if possible...

I am not sure on the actual size. However it is the same diameter as a tradition socket. It will but ohm type rims but if you have aftermarket you may have issues.

Are these Chrome Moly, Chrome Vanadium, or something else?

per the Gear Wrench Website "GEARWRENCH offers a wide range of impact sockets in open stock and sets that are designed to deliver the performance and strength that the professional users require. They are made from chrome molybdenum alloy steel for exceptional strength and durability. Sockets have a manganese phosphate coating to resist corrosion. The sockets also feature highly visible laser etched markings and a secondary size hard stamping. The sockets feature off-corner loading to reduce fastener rounding. FEATURES High-strength impact socket for up to 3x longer life than regular thin wall impact sockets Thin wall socket design for access in confined spaces Protective outer sheath prevents damage to wheels"

Do these sockets have any coating to protect against corrosion?

They have the usual kosmoline film however once you use them and clean then you best use them. The coat is for storage before purchase. Ifor you will use them rarely keep away from moist places.

Do these sockets protect the lug nuts from getting scratched?

Only the tops. Also the area around the lug nut if it's close clearance around the nut by the wheel itself.

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GEARWRENCH 3 Piece 1/2" Drive High-Strength Wheel Protector Impact Metric Socket Set | 84946

GEARWRENCH 3 Piece 1/2" Drive High-Strength Wheel Protector Impact Metric Socket Set | 84946

Product ID: 289443293

Details

Brand
GEARWRENCH
Drive system
1/2" drive
Finish type
Manganese
Material
Metal
Number of pieces
3

📏Thin wall design for tight spaces

⚙️3x longer life impact sockets

🛡️Protective outer sheath for wheels

€ 97.99

Duties & taxes included

In stock

Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🛠️ Gear up with GEARWRENCH: The socket set that works as hard as you do!

LUG NUT SAVIOR - Special insert protects lug nuts and bolts from wear and tear, extending the life of your fasteners and saving you money.
WHEEL FRIENDLY PROTECTION - Durable outer sheath guards your wheels against scratches and damage, keeping your ride showroom-ready.
BUILT TO LAST WORK TO WIN - High-strength impact sockets deliver up to 3x longer life than standard thin wall sockets, ensuring your toolkit stays sharp and reliable.
CORROSION RESISTANT FINISH - Manganese phosphate coating fights rust and corrosion, so your sockets look and perform like new, job after job.
PRECISION ACCESS IN TIGHT SPOTS - Thin wall socket design lets you effortlessly reach lug nuts in confined spaces—no more wrestling with bulky tools.

The GEARWRENCH 3 Piece 1/2" Drive High-Strength Wheel Protector Impact Metric Socket Set (sizes 17mm, 19mm, 21mm) features a patented thin wall design for access in tight spaces, a protective outer sheath to prevent wheel damage, and manganese phosphate coating for corrosion resistance. Engineered for durability with up to 3x longer life than regular sockets, this set safeguards lug nuts and bolts with a special insert, making it the professional’s choice for automotive and industrial applications.

Specifications

ASIN	B00CT9LQSK
ASIN	B00CT9LQSK
Bit Compatibilities	Hex-bolts, Hex-nuts, Lug Nuts
Bit Set Composition	Bit Set
Brand Name	GEARWRENCH
Customer Reviews	4.7 4.7 out of 5 stars (948)
Customer reviews	4.7 4.7 out of 5 stars (948)
Date First Available	21 September 2023
Department	Unisex Adult
Drive Bit Application	automotive
Drive Bit Shank Style	1/2" Drive
Drive System	1/2" drive
Finish Types	Manganese Phosphate
Global Trade Identification Number	00099575849466
Is Discontinued By Manufacturer	No
Item Weight	0.79 Pounds
Item model number	84946
Manufacturer	GEARWRENCH
Manufacturer	GEARWRENCH
Manufacturer Part Number	84946
Material Type	Metal
Model Number	84946
Number of Items	1
Number of Pieces	3
Product Dimensions	16.19 x 12.35 x 5.08 cm; 358.34 g
Set Name	3 Piece 1/2" Drive High-Strength Wheel Protector Impact Metric Socket Set
UPC	099575849466
Unit Count	1 Count

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