Genius Tools Tamperproof Star Bit T-40 Size 1/4 Inch Hex Shank 30mm Length Precision Drive Durable Steel - 7140
- Genius Tools 7140 T-40 tamperproof star bit fits T-40 tamperproof star fasteners and uses a 1/4 inch hex shank.
- 30mm (1.18") overall length provides a compact bit profile for controlled driving where available working space is limited.
- Durable steel construction, a heat-treated exterior, and a strong inner core support reliable use for repeated fastening tasks.
- Precision drive design helps the bit engage the correct tamperproof star fastener size for more confident installation or removal.
- Stamped size markings make the T-40 size easy to identify, helping keep similar driver bits organized and ready to select.
Also Available in Other Sizes (62) Same tool, different size Show all 62 sizes Hide sizes
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Size T-7 · Shank 1/4" · Length 30mm
$1.70
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Size T-7 · Shank 1/4" · Length 56mm
$3.40
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Size T-7 · Shank 1/4" · Length 88mm
$6.77
-
Size T-7 · Shank 1/4" · Length 125mm
$7.90
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Size T-8 · Shank 1/4" · Length 30mm
$1.95
-
Size T-8 · Shank 1/4" · Length 56mm
$3.40
-
Size T-8 · Shank 1/4" · Length 88mm
$6.77
-
Size T-8 · Shank 1/4" · Length 125mm
$7.90
-
Size T-9 · Shank 1/4" · Length 30mm
$1.70
-
Size T-9 · Shank 1/4" · Length 56mm
$3.40
-
Size T-9 · Shank 1/4" · Length 88mm
$6.77
-
Size T-9 · Shank 1/4" · Length 125mm
$7.90
-
Size T-10 · Shank 1/4" · Length 30mm
$1.93
-
Size T-10 · Shank 1/4" · Length 56mm
$3.40
-
Size T-10 · Shank 1/4" · Length 88mm
$7.78
-
Size T-10 · Shank 1/4" · Length 125mm
$7.90
-
Size T-15 · Shank 1/4" · Length 30mm
$1.93
-
Size T-15 · Shank 1/4" · Length 56mm
$3.40
-
Size T-15 · Shank 1/4" · Length 88mm
$7.78
-
Size T-15 · Shank 1/4" · Length 125mm
$7.90
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Size T-20 · Shank 1/4" · Length 30mm
$1.93
-
Size T-20 · Shank 1/4" · Length 56mm
$3.40
-
Size T-20 · Shank 1/4" · Length 88mm
$6.77
-
Size T-20 · Shank 1/4" · Length 125mm
$7.90
-
Size T-25 · Shank 1/4" · Length 30mm
$2.22
-
Size T-25 · Shank 1/4" · Length 56mm
$3.40
-
Size T-25 · Shank 1/4" · Length 88mm
$6.77
-
Size T-25 · Shank 1/4" · Length 125mm
$7.90
-
Size T-27 · Shank 1/4" · Length 30mm
$1.93
-
Size T-27 · Shank 1/4" · Length 56mm
$3.91
-
Size T-27 · Shank 1/4" · Length 88mm
$6.77
-
Size T-27 · Shank 1/4" · Length 125mm
$9.09
-
Size T-30 · Shank 1/4" · Length 30mm
$1.93
-
Size T-30 · Shank 1/4" · Length 56mm
$3.40
-
Size T-30 · Shank 1/4" · Length 88mm
$6.77
-
Size T-30 · Shank 1/4" · Length 125mm
$9.09
-
Size T-40 · Shank 1/4" · Length 56mm
$4.16
-
Size T-40 · Shank 1/4" · Length 88mm
$7.25
-
Size T-40 · Shank 1/4" · Length 125mm
$9.72
- Size T-45 · Shank 1/4" · Length 30mm Out of stock Sold out
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Size T-45 · Shank 5/16" · Length 30mm
$3.01
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Size T-45 · Shank 5/16" · Length 56mm
$5.29
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Size T-45 · Shank 5/16" · Length 88mm
$8.22
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Size T-45 · Shank 5/16" · Length 125mm
$10.88
- Size T-50 · Shank 1/4" · Length 30mm Out of stock Sold out
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Size T-50 · Shank 5/16" · Length 30mm
$3.01
-
Size T-50 · Shank 5/16" · Length 56mm
$4.60
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Size T-50 · Shank 5/16" · Length 88mm
$9.46
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Size T-50 · Shank 5/16" · Length 125mm
$10.88
- Size T-55 · Shank 1/4" · Length 30mm Out of stock Sold out
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Size T-55 · Shank 10mm · Length 30mm
$4.34
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Size T-55 · Shank 10mm · Length 56mm
$6.97
-
Size T-55 · Shank 10mm · Length 88mm
$10.64
-
Size T-55 · Shank 10mm · Length 125mm
$15.74
-
Size T-60 · Shank 12mm · Length 36mm
$7.02
-
Size T-60 · Shank 12mm · Length 56mm
$7.51
-
Size T-60 · Shank 12mm · Length 88mm
$16.14
-
Size T-60 · Shank 12mm · Length 125mm
$19.37
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Size T-70 · Shank 14mm · Length 36mm
$9.72
-
Size T-70 · Shank 14mm · Length 56mm
$8.96
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Size T-70 · Shank 14mm · Length 88mm
$20.02
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Size T-70 · Shank 14mm · Length 125mm
$22.99
Also Available in These Sets (12) This item is included in each set below Show all 12 sets Hide sets
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Tamperproof Star Screwdriver Bit Set 11 Piece S2 Steel 1/4 Inch Drive Precision Security Bits
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Star Wrench Set 24 Piece, Torx, Precision S2 Steel,
$56.54
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Tamperproof Star Screwdriver Bit Set 24 Piece S2 Steel Assorted Sizes Precision Drive
$30.73
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Torque Screwdriver Set 1 to 5 Nm 1/4 Inch Drive 27 Piece Precision Adjustable
$127.92
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Torque Screwdriver Set 9 to 50 Inch Pounds 1/4 Inch Drive 27 Piece Adjustable Precision Tool Kit
$130.21
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Ratcheting Screwdriver and Bit Set 37 Piece Multi-Bit Precision Drive Ergonomic Handle Versatile Hand Tool Kit
$42.23
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Ratcheting Screwdriver and Bit Set 37 Piece SAE Multi-Bit Precision Drive Ergonomic Handle
Special Price $55.91 Regular Price $70.45
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Hand Socket Set 40 Piece Metric 1/4 Inch Drive
Special Price $84.03 Regular Price $105.88
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Screwdriver Bit Set 47 Piece Assorted Sizes Precision S2 Steel Magnetic Drive
$201.03
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Star Type Wrench Set 56 Piece 1/2 Inch Drive Complete Set
$298.76
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Socket and Bit Set 59 Piece Metric 3/8 Inch Drive 12-Point
$146.41
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Socket and Bit Set 59 Piece Metric 3/8 Inch Drive
$100.06
Genius Tools Tamperproof Star Bit T-40 Size 1/4 Inch Hex Shank 30mm Length Precision Drive Durable Steel - 7140 | Screwdriver Bit
This T-40 tamperproof star screwdriver bit is built for consistent fit and controlled driving with a 1/4" hex shank. The 30mm overall length supports work in compact areas while maintaining stable engagement on tamperproof star fasteners.
Made from High Speed Steel, it combines high strength with durability and anti-corrosive properties. The bit is heat treated to produce a tough exterior and a strong inner core for long-term professional service.
Key Benefits
- T-40 tamperproof star profile supports secure fit and reduced cam-out.
- 1/4" hex shank fits compatible bit holders and professional drivers.
- 30mm (1.18") overall length balances access and control in tight spaces.
- High Speed Steel construction delivers strength, durability, and anti-corrosive performance.
- Heat-treated design provides a tough exterior with superior inner core strength.
- Permanently stamped size marking enables fast identification and better tool organization.
- Meets or exceeds ANSI standards and is backed by a Limited Lifetime Warranty.
SKU: 7140. Designed and made for professional technicians, this bit is built to perform over a lifetime of heavy use while maintaining reliable size identification and corrosion resistance. Suitable for precision drive tasks where a tamperproof star bit profile and dependable material strength are required.
| Brand | Genius Tools |
|---|---|
| Material | High Speed Tool Steel |
| Size | T-40 |
| Drive Size | 1/4" Hex Shank |
| Length | 30mm |
| Type | Tamperproof Star Screwdriver Bits |