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Description
21mm Deep Impact Socket
1/2" Drive | Alloy Wheel Specialist | Chrome Molybdenum Steel
Engineered for Alloy Wheel Professionals
Precision-machined 21mm A/F deep impact socket designed specifically for alloy wheel removal and installation. The extended depth profile provides superior reach for recessed wheel nuts, while the robust 1/2" square drive delivers reliable torque transfer under pneumatic impact conditions.
Built from premium chrome molybdenum alloy steel with a corrosion-resistant black phosphate finish, this socket combines workshop durability with the precision demanded by fleet maintenance teams and professional technicians.
Technical Specification
| Socket Size (A/F) | 21mm |
| Drive Size | 1/2" Square Drive |
| Socket Type | Deep Impact (Extended Reach) |
| Point Configuration | 6-Point Hex |
| Material | Chrome Molybdenum Steel (Cr-Mo) |
| Finish | Black Phosphate / Oxide |
| Application | Alloy Wheel Nuts, Recessed Fasteners |
Performance Features
⬢ 6-Point Hex Design
Engages fastener flats, not corners—minimizing rounding and maximizing torque transfer on high-torque wheel nut applications.
⚙ Deep Wall Construction
Extended depth profile reaches recessed wheel nuts and threaded studs without interference, essential for modern alloy wheel designs.
🔩 Impact-Rated Alloy Steel
Chrome molybdenum construction withstands repeated pneumatic impact cycles without cracking or deformation—engineered for air tools.
🛡 Corrosion-Resistant Finish
Black phosphate coating protects against workshop moisture and road salt exposure, maintaining dimensional accuracy over time.
⚡ Workshop Applications
- Alloy wheel removal and installation on passenger vehicles
- Fleet maintenance and tyre service operations
- Mobile tyre fitting and roadside assistance
- Workshop pneumatic impact wrench use (1/2" drive)
- Recessed wheel nut access on aftermarket alloy wheels
Why Chrome Molybdenum?
Chrome molybdenum steel (Cr-Mo) is the industry standard for impact sockets due to its exceptional toughness and fatigue resistance. Unlike chrome vanadium hand sockets, Cr-Mo alloy absorbs the shock loads generated by pneumatic and electric impact wrenches without fracturing.
The black oxide finish not only provides corrosion protection but also aids in visual identification—distinguishing impact-rated sockets from standard chrome hand sockets in busy workshop environments.
📦 What's Included
1 × 21mm Deep Impact Socket (1/2" Drive)
Supplied individually. Compatible with all standard 1/2" square drive impact wrenches, ratchets, and extension bars.
UK Stock · Fast Dispatch
Held in UK stock for same-day dispatch on orders placed before 2pm (Monday–Friday). Delivered via tracked courier service to workshops, garages, and trade addresses nationwide.
Part of our premium pneumatic tools and accessories range—engineered for professionals who demand reliability under pressure.
Payment & Security
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