STEELMAN JS-79400 1/2in DR. 19mm x 21mm Deep Thin Wall Flip Impact Socket
Thin Wall Impact Socket - STEELMAN (JS-79400, 19mm/21mm) Prevents Wheel Damage
Dual-Size Flip Socket for Tight Lug Nut Access
The STEELMAN JS-79400 is a 1/2 inch drive thin wall impact socket that combines 19mm and 21mm sizes in one flip design tool. This socket solves tight clearance issues around modern alloy wheels where standard sockets risk rim damage or won't fit into recessed lug cavities.
Key Benefits and Features
Perfect Applications for This Impact Socket
Ideal for automotive professionals and serious DIYers who need reliable performance:
- Tire rotations and seasonal wheel changes on cars and SUVs.
- Brake pad and rotor replacement where wheel removal is required.
- Emergency roadside tire changes with limited tool access.
- Multi-vehicle households with different lug nut sizes.
- Mobile tire service and repair operations.
- Shop environments where speed and efficiency matter.
Technical Specifications
| Specification | Details |
|---|---|
| Drive Size | 1/2 inch |
| Socket Sizes | 19mm & 21mm (dual-ended flip design) |
| Wall Type | Extra-thin wall construction |
| Material | Heat-treated chromoly steel |
| Coating | Black phosphate (corrosion resistant) |
| Point Design | 6-point (grips sides, not corners) |
| Dimensions | 3.04 x 1.12 x 1.10 in (77.2 x 28.4 x 27.9 mm) |
| Weight | 0.34 lbs (154 g) |
| Model Number | JS-79400 |
| Standards | Meets ANSI/ASME performance requirements |
Add Professional Impact Socket Performance to Your Tool Collection
Order your STEELMAN thin wall impact socket today for reliable wheel work without rim damage.
Frequently Asked Questions
Will this socket work with my cordless impact wrench?
Yes, the JS-79400 is specifically designed for use with 1/2 inch drive cordless impact wrenches, pneumatic tools, and manual ratchets. The heat-treated chromoly steel construction and 6-point design handle high-torque applications up to 150% proof torque under ASME testing standards without cracking or rounding fasteners.
How does this compare to standard wall impact sockets?
Standard wall sockets are typically 3-4mm thicker and often scratch aluminum wheels or get stuck in tight recessed lug cavities. This extra-thin wall design provides superior clearance around aftermarket and OE wheels while maintaining the same strength, durability, and impact resistance as thicker alternatives through advanced metallurgy.
What vehicles are the 19mm and 21mm sizes compatible with?
These are the most common lug nut sizes covering approximately 80% of passenger cars, SUVs, and light trucks. The 19mm end fits many imports including Honda, Toyota, and Nissan vehicles, while the 21mm covers most domestic cars, Ford, Chevy, larger SUVs, and many European models like BMW and Mercedes.
Does this socket come with a warranty?
Yes, STEELMAN backs this impact socket with a lifetime limited warranty covering manufacturer defects and workmanship when used as intended for automotive applications. The warranty excludes normal wear, misuse, or damage from improper torque specifications. Keep your receipt for warranty claims and contact customer service at 1-855-706-1550.
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