Genius Tools Hex Head Driver 21mm Size 1/2 Inch Drive 76mm Length Durable Steel Construction - 447621
- Genius Tools 447621 is a 21mm hex head driver impact bit socket for matching metric hex fasteners.
- 1/2 inch drive configuration helps confirm compatibility with the appropriate drive tools for this socket size.
- 76mm overall length provides useful reach while maintaining controlled engagement with the fastener.
- Chromium molybdenum alloy steel construction, heat treatment, and black oxide coating support dependable use in demanding service conditions.
- Permanently stamped size markings make the 21mm hex driver easier to identify, select, and organize with similar sockets.
Also Available in Other Sizes (46) Same tool, different size Show all 46 sizes Hide sizes
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Size 5/32" · Length 60mm
$15.34
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Size 4mm · Length 60mm
$13.34
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Size 4mm · Length 76mm
$16.63
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Size 3/16" · Length 60mm
$15.34
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Size 5mm · Length 60mm
$15.34
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Size 5mm · Length 76mm
$19.12
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Size 7/32" · Length 60mm
$15.34
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Size 6mm · Length 60mm
$15.34
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Size 6mm · Length 76mm
$19.12
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Size 1/4" · Length 60mm
$16.42
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Size 7mm · Length 60mm
$14.28
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Size 7mm · Length 76mm
$17.78
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Size 5/16" · Length 60mm
$16.42
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Size 8mm · Length 60mm
$16.42
- Size 8mm · Length 76mm Out of stock Sold out
-
Size 9mm · Length 60mm
$14.28
-
Size 9mm · Length 76mm
$17.78
-
Size 3/8" · Length 60mm
$18.11
- Size 10mm · Length 60mm Out of stock Sold out
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Size 10mm · Length 76mm
$17.78
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Size 11mm · Length 60mm
$16.42
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Size 7/16" · Length 60mm
$18.11
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Size 12mm · Length 60mm
$16.42
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Size 12mm · Length 76mm
$20.45
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Size 1/2" · Length 60mm
$18.11
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Size 13mm · Length 60mm
$16.42
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Size 14mm · Length 60mm
$16.42
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Size 14mm · Length 76mm
$17.78
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Size 9/16" · Length 60mm
$15.74
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Size 15mm · Length 60mm
$18.11
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Size 5/8" · Length 60mm
$18.11
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Size 16mm · Length 60mm
$18.11
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Size 16mm · Length 76mm
$24.63
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Size 17mm · Length 60mm
$18.11
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Size 17mm · Length 76mm
$24.63
-
Size 11/16" · Length 60mm
$15.74
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Size 18mm · Length 60mm
$18.11
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Size 18mm · Length 76mm
$21.42
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Size 19mm · Length 60mm
$18.11
-
Size 19mm · Length 76mm
$21.42
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Size 3/4" · Length 60mm
$18.11
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Size 20mm · Length 60mm
$18.11
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Size 13/16" · Length 60mm
$15.74
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Size 21mm · Length 60mm
$15.74
-
Size 22mm · Length 60mm
$18.11
- Size 24mm · Length 60mm Out of stock Sold out
Genius Tools Hex Head Driver 21mm Size 1/2 Inch Drive 76mm Length Durable Steel Construction - 447621 Impact Hex Bit Socket
This 21mm hex head driver is built as a 1/2" drive impact bit socket for consistent fit and dependable strength. With a 76mm (2.99") overall length, it balances access and control for applications requiring a hex bit socket in an impact-ready format.
Constructed from Chromium Molybdenum Alloy Steel, it delivers high strength, durability, and anti-corrosive properties. Permanent size stamping supports fast identification during tool organization and reduces time spent checking markings.
Key Benefits
- 21mm hex impact bit socket helps reduce fastener rounding and slippage.
- 1/2" drive size suits common impact and ratchet setups in shops.
- 76mm overall length provides reach while maintaining stable tool control.
- Chromium Molybdenum Alloy Steel construction supports high strength and durability.
- Black oxide coating and heat treatment withstand rigorous professional technician use.
- Permanently stamped size markings enable quick identification and cleaner tool organization.
- Meets or exceeds ANSI standards and includes a Limited Lifetime Warranty.
SKU 447621 is designed for long-term service in demanding environments, combining heat-treated strength with corrosion resistance and clear size identification. The impact-ready build and black oxide finish help it stand up to repeated use while maintaining reliable performance over time.
| Brand | Genius Tools |
|---|---|
| Material | CRMO |
| Size | 21mm |
| Drive Size | 1/2" |
| Genius Tools Diameter | 28mm |
| Length | 76mm |
| Type | Head Drivers |