Genius Tools Star Bit Socket T-40 Size 3/8 Inch Drive 220mm Extra Long Durable Design - 308+6840
- Genius Tools 308+6840 is a T-40 star bit socket with a 3/8 inch drive for matching compatible hand tool setups.
- T-40 star bit profile engages matching star fasteners securely, helping reduce slippage during removal or installation.
- Extra-long 220mm overall length provides added reach for recessed, obstructed, or hard-to-access fasteners.
- 3/8 inch drive fits common ratchets and torque tools, making it easy to integrate into existing socket systems.
- High speed steel construction supports strength, durability, and anti-corrosive resistance, while stamped size markings simplify quick identification.
Also Available in Other Sizes (50) Same tool, different size Show all 50 sizes Hide sizes
-
Size T-10 · Length 50mm
Special Price $3.70 Regular Price $5.69
-
Size T-10 · Length 110mm
Special Price $6.36 Regular Price $9.78
-
Size T-10 · Length 140mm
Special Price $6.88 Regular Price $10.58
-
Size T-10 · Length 180mm
Special Price $9.11 Regular Price $14.02
-
Size T-10 · Length 220mm
Special Price $10.30 Regular Price $15.84
-
Size T-15 · Length 50mm
Special Price $3.70 Regular Price $5.69
-
Size T-15 · Length 110mm
Special Price $6.36 Regular Price $9.78
-
Size T-15 · Length 140mm
Special Price $7.91 Regular Price $12.17
-
Size T-15 · Length 180mm
Special Price $9.11 Regular Price $14.02
-
Size T-15 · Length 220mm
Special Price $8.95 Regular Price $13.77
-
Size T-20 · Length 50mm
Special Price $4.25 Regular Price $6.54
-
Size T-20 · Length 110mm
Special Price $6.36 Regular Price $9.78
-
Size T-20 · Length 140mm
Special Price $6.88 Regular Price $10.58
-
Size T-20 · Length 180mm
Special Price $9.11 Regular Price $14.02
-
Size T-20 · Length 220mm
Special Price $8.95 Regular Price $13.77
-
Size T-25 · Length 50mm
Special Price $4.25 Regular Price $6.54
-
Size T-25 · Length 110mm
Special Price $6.36 Regular Price $9.78
-
Size T-25 · Length 140mm
Special Price $6.88 Regular Price $10.58
-
Size T-25 · Length 180mm
Special Price $7.92 Regular Price $12.19
-
Size T-25 · Length 220mm
Special Price $8.95 Regular Price $13.77
-
Size T-27 · Length 50mm
Special Price $3.70 Regular Price $5.69
-
Size T-27 · Length 110mm
Special Price $6.36 Regular Price $9.78
-
Size T-27 · Length 140mm
Special Price $6.88 Regular Price $10.58
-
Size T-27 · Length 180mm
Special Price $7.92 Regular Price $12.19
-
Size T-27 · Length 220mm
Special Price $8.95 Regular Price $13.77
-
Size T-30 · Length 50mm
Special Price $4.25 Regular Price $6.54
-
Size T-30 · Length 110mm
Special Price $7.31 Regular Price $11.25
-
Size T-30 · Length 140mm
Special Price $6.88 Regular Price $10.58
-
Size T-30 · Length 180mm
Special Price $7.92 Regular Price $12.19
-
Size T-30 · Length 220mm
Special Price $10.30 Regular Price $15.84
-
Size T-35 · Length 50mm
Special Price $4.02 Regular Price $6.19
-
Size T-40 · Length 50mm
Special Price $4.96 Regular Price $7.63
-
Size T-40 · Length 110mm
Special Price $8.55 Regular Price $13.15
-
Size T-40 · Length 140mm
Special Price $9.22 Regular Price $14.19
-
Size T-40 · Length 180mm
Special Price $9.24 Regular Price $14.21
-
Size T-45 · Length 50mm
Special Price $5.67 Regular Price $8.72
-
Size T-45 · Length 110mm
Special Price $9.22 Regular Price $14.19
-
Size T-45 · Length 140mm
Special Price $9.54 Regular Price $14.67
-
Size T-45 · Length 180mm
Special Price $11.06 Regular Price $17.01
-
Size T-45 · Length 220mm
Special Price $14.45 Regular Price $22.23
-
Size T-50 · Length 50mm
Special Price $4.93 Regular Price $7.59
-
Size T-50 · Length 110mm
Special Price $8.02 Regular Price $12.34
-
Size T-50 · Length 140mm
Special Price $9.54 Regular Price $14.67
-
Size T-50 · Length 180mm
Special Price $11.06 Regular Price $17.01
-
Size T-50 · Length 220mm
Special Price $12.56 Regular Price $19.33
-
Size T-55 · Length 50mm
Special Price $7.31 Regular Price $11.25
-
Size T-55 · Length 110mm
Special Price $10.14 Regular Price $15.60
-
Size T-55 · Length 140mm
Special Price $13.18 Regular Price $20.27
-
Size T-55 · Length 180mm
Special Price $16.90 Regular Price $26.00
-
Size T-55 · Length 220mm
Special Price $16.20 Regular Price $24.92
Genius Tools Star Bit Socket T-40 Size 3/8 Inch Drive 220mm Extra Long Durable Design - 308+6840 Professional Star Bit Socket
This professional star bit socket is built for precise engagement with T-40 star fasteners while offering extra-long reach for access in recessed or obstructed areas. The 3/8 inch drive format supports common ratchets and torque tools used in professional hand tool setups.
Made from high speed steel for strength and durability, it also features anti-corrosive properties to help resist rust in demanding shop environments. Size markings are stamped for quick identification and consistent tool organization.
Key Benefits
- T-40 star bit socket profile delivers secure fit and reduced fastener slippage.
- 3/8 inch drive size fits common ratchets, extensions, and torque setups.
- Extra-long 220mm overall length reaches fasteners in tight or recessed areas.
- High speed steel construction supports high strength and long service life.
- Anti-corrosive properties help resist rust and maintain reliable performance over time.
- Stamped size markings provide permanent, fast identification for better tool organization.
- Meets or exceeds ANSI standards for professional-grade fit and consistency.
Designed for professional technicians, this socket balances reach, durability, and dependable fastener grip. The bit is securely attached yet interchangeable, supporting long-term use across repeated service tasks. Backed by the Genius Tools Limited Lifetime Warranty against manufacturer defects for added confidence in daily shop work.
| Brand | Genius Tools |
|---|---|
| Material | HSS |
| Size | T-40 |
| Drive Size | 3/8" |
| Length | 220mm |
| Type | Star Bit Sockets |