T40 Torx Bits(538)
Extended Torx Bits & Security Torx Bit Set, 23Pcs S2 Steel Magnetic Star Bits, Tamper Proof T6-T40, 4" & 7.9" Long for Deep Holes Was $21.69

Extended Torx Bits & Security Torx Bit Set, 23Pcs S2 Steel Magnetic Star Bits, Tamper Proof T6-T40, 4" & 7.9" Long for Deep Holes
20Cm Extra-Long Torx Screwdriver Bit Magnetic Security Tamper-Proof Star Electric Drill Hex Shank T8 T10 T15 T20 T25 T27 T30 T40 T15 Fangkenuo From $4.79

20Cm Extra-Long Torx Screwdriver Bit Magnetic Security Tamper-Proof Star Electric Drill Hex Shank T8 T10 T15 T20 T25 T27 T30 T40 T15 Fangkenuo
14Pcs Torx Bit Set, Tamper Proof Torx Bits with T Ratchet Screwdriver, 1/4 Hex Shank Magnetic Torx Screwdriver Sets for Power Impact Driver, T5-T40, S2 Steel, 3" long $14.50

14Pcs Torx Bit Set, Tamper Proof Torx Bits with T Ratchet Screwdriver, 1/4 Hex Shank Magnetic Torx Screwdriver Sets for Power Impact Driver, T5-T40, S2 Steel, 3" long
Riousery 150mm / 5.91 in Long Magnetic Torx Screwdriver Bit Set, 14 Piece S2 Alloy Steel 1/4 Inch Hex Shank Star Driver Bits (T5-T40) with Storage Rack for Drilling and Repairing $18.63

Riousery 150mm / 5.91 in Long Magnetic Torx Screwdriver Bit Set, 14 Piece S2 Alloy Steel 1/4 Inch Hex Shank Star Driver Bits (T5-T40) with Storage Rack for Drilling and Repairing
ZEPARO 14Pcs Set 25mm Torx Screwdriver Bits with Hole T5-T40 Electric Screw Driver $7.03

ZEPARO 14Pcs Set 25mm Torx Screwdriver Bits with Hole T5-T40 Electric Screw Driver
Tamper-proof Torx Bit Set, Precision Crafted For Security, Advanced Steel Construction, Ideal For Automotive And Home Repairs, Includes T5 To T40 Security Tamper Resistant Star $11.99

Tamper-proof Torx Bit Set, Precision Crafted For Security, Advanced Steel Construction, Ideal For Automotive And Home Repairs, Includes T5 To T40 Security Tamper Resistant Star
Clearance ROTATION 14-Piece Tamper Resistant Star Bits, Chrome Vanadium Steel, T5 - T40 Impact Grade Security Torx Bit Set, 1/4-inch Hex Shank $8.99 Was $9.99

ROTATION 14-Piece Tamper Resistant Star Bits, Chrome Vanadium Steel, T5 - T40 Impact Grade Security Torx Bit Set, 1/4-inch Hex Shank
Tamper Proof Torx Bit Set: 25 Pieces T5-T40 Torx Security Bits Set | Torque Star Bits with 2.5" Magnetic Extension Bit Holder and Storage Box | S2 Steel From $19.99
Tamper Proof Torx Bit Set: 25 Pieces T5-T40 Torx Security Bits Set | Torque Star Bits with 2.5" Magnetic Extension Bit Holder and Storage Box | S2 Steel
Uxcell T40 Security Torx Bit 1/4" Hex Shank 2" S2 Steel Magnetic Tamper Resistant Star Bits Torx Head with Hole $9.16

Uxcell T40 Security Torx Bit 1/4" Hex Shank 2" S2 Steel Magnetic Tamper Resistant Star Bits Torx Head with Hole
Uxcell 5Pcs Security Torx Bit 1/4" Hex Shank 2" Long Drill Bits T40 Torx Star S2 Steel Tamper Resistant Screwdriver Bit $8.89

Uxcell 5Pcs Security Torx Bit 1/4" Hex Shank 2" Long Drill Bits T40 Torx Star S2 Steel Tamper Resistant Screwdriver Bit
10pcs 50mm For Impact for Torx Wrench Drill Bit T7-T40 Screwdriver Bits $13.99

10pcs 50mm For Impact for Torx Wrench Drill Bit T7-T40 Screwdriver Bits
Uxcell T40 Torx Head Screwdriver Bit 1/4" Hex Shank 4" (100mm) Long Magnetic No Hole Tip 6 Point Star Screw Driver

Uxcell T40 Torx Head Screwdriver Bit 1/4" Hex Shank 4" (100mm) Long Magnetic No Hole Tip 6 Point Star Screw Driver
Surtek Interchangeable Torx® Bit Set, T8 to T40, 1/4" Bit Adaptor, 9-pieces

Surtek Interchangeable Torx® Bit Set, T8 to T40, 1/4" Bit Adaptor, 9-pieces
12 Pcs Torx Bits Set, 6" Long Star Screwdriver Bit Set with Hole for Cordless Screwdrivers, 1/4" T7-T40, S2 Steel $17.99

12 Pcs Torx Bits Set, 6" Long Star Screwdriver Bit Set with Hole for Cordless Screwdrivers, 1/4" T7-T40, S2 Steel
DIABLO TORX BIT T40 2 BULK $7.91

DIABLO TORX BIT T40 2 BULK
Wiha 3.5 Inch Terminatorblue Impact Bit Torx T40, 2 Pieces $5.98 Was $11.23

Wiha 3.5 Inch Terminatorblue Impact Bit Torx T40, 2 Pieces
7 Pcs Magnetic Torx Screwdriver Bit Set T10-T40 Star Torx for Head Security Screwdriver Drill Bits 1/4 Inch Shank Hand T $8.75

7 Pcs Magnetic Torx Screwdriver Bit Set T10-T40 Star Torx for Head Security Screwdriver Drill Bits 1/4 Inch Shank Hand T
EIMELI 12PCS Torx Screwdriver Bits 1/4 Inch Hex Shank Electric Magnetic Star Torx Security Head Screw driver Drill Bits Set, T5-T40,75mm Length $9.59

EIMELI 12PCS Torx Screwdriver Bits 1/4 Inch Hex Shank Electric Magnetic Star Torx Security Head Screw driver Drill Bits Set, T5-T40,75mm Length
26PCS Impact Proof Torx Bit Set-T7-T40 Star Bits with Magnetic Bit Holder,1 2 S2 Steel Security Torx Bit Kits for Automotive And Home Repairs $13.49

26PCS Impact Proof Torx Bit Set-T7-T40 Star Bits with Magnetic Bit Holder,1 2 S2 Steel Security Torx Bit Kits for Automotive And Home Repairs
Wiha 2 Inch Terminatorblue Impact Bit, Torx T40, 5 Pieces $8.99

Wiha 2 Inch Terminatorblue Impact Bit, Torx T40, 5 Pieces
Alfa Tools HSB16031 T40 x 1-1/4" x 5/16" Hex Torx Bit (25 Pack) $33.65

Alfa Tools HSB16031 T40 x 1-1/4" x 5/16" Hex Torx Bit (25 Pack)
VIM Tools VIM-VI5T40 0.31 in. Impact Torx T40 Hexa Bit $13.48

VIM Tools VIM-VI5T40 0.31 in. Impact Torx T40 Hexa Bit
Alfa Tools HSB16073 T40 x 3" x 1/4" Torx Power Bit (10 Pack) $15.64

Alfa Tools HSB16073 T40 x 3" x 1/4" Torx Power Bit (10 Pack)
Uxcell 5Pcs T40 Security Torx Bit 1/4" Hex Shank 6" S2 Steel Magnetic Tamper Resistant Star Bits Torx Head with Hole $15.50

Uxcell 5Pcs T40 Security Torx Bit 1/4" Hex Shank 6" S2 Steel Magnetic Tamper Resistant Star Bits Torx Head with Hole
3/8-Inch Drive T40 Torx Bit Socket S2 Steel 100mm Length Brown 2 Pcs $15.09

3/8-Inch Drive T40 Torx Bit Socket S2 Steel 100mm Length Brown 2 Pcs
Alfa Tools HSB15830 T40" x 1" x 1/4" Hex Torx Bit (25 Pack) $16.88

Alfa Tools HSB15830 T40" x 1" x 1/4" Hex Torx Bit (25 Pack)
Uxcell 10pcs T40 Security Torx Bit 1/4" Hex Shank 4" S2 Steel Magnetic Tamper Resistant Star Bits Torx Head with Hole $17.47

Uxcell 10pcs T40 Security Torx Bit 1/4" Hex Shank 4" S2 Steel Magnetic Tamper Resistant Star Bits Torx Head with Hole
Lisle 82270 T-40 Super Torx Bit $15.50

Lisle 82270 T-40 Super Torx Bit
Rollback Uxcell 2pcs 1/4" Hex Shank T40 Head 1" Length Torx Screwdriver Bit $8.79 Was $9.89

Uxcell 2pcs 1/4" Hex Shank T40 Head 1" Length Torx Screwdriver Bit
Uxcell T40 Torx Head Screwdriver Bit 1/4" Hex Shank 4" Long Magnetic with Hole $10.99

Uxcell T40 Torx Head Screwdriver Bit 1/4" Hex Shank 4" Long Magnetic with Hole
Uxcell 10pcs T40 Security Torx Bit 1/4" Hex Shank 3" S2 Steel Magnetic Tamper Resistant Star Bits Torx Head with Hole $16.49

Uxcell 10pcs T40 Security Torx Bit 1/4" Hex Shank 3" S2 Steel Magnetic Tamper Resistant Star Bits Torx Head with Hole
Rollback Uxcell 2Pcs T40 Security Torx Bit 1/4" Hex Shank 3" S2 Steel Magnetic Tamper Resistant Star Bits Torx Head with Hole $8.79 Was $9.89

Uxcell 2Pcs T40 Security Torx Bit 1/4" Hex Shank 3" S2 Steel Magnetic Tamper Resistant Star Bits Torx Head with Hole
Uxcell 5pcs T40 Torx Impact Screwdriver Bit 1/4" Hex Shank 3" Long Magnetic No Hole $12.99

Uxcell 5pcs T40 Torx Impact Screwdriver Bit 1/4" Hex Shank 3" Long Magnetic No Hole
Uxcell 3pcs T40 Torx Head Screwdriver Bit 4" Long 1/4" Hex Shank Magnetic Tamper Proof 6 Point Star Screw Driver Black Phosphate $11.19

Uxcell 3pcs T40 Torx Head Screwdriver Bit 4" Long 1/4" Hex Shank Magnetic Tamper Proof 6 Point Star Screw Driver Black Phosphate
Uxcell T40 Security Torx Bit 1/4" Hex Shank 4" S2 Steel Magnetic Tamper Resistant Star Bits Torx Head with Hole $7.03

Uxcell T40 Security Torx Bit 1/4" Hex Shank 4" S2 Steel Magnetic Tamper Resistant Star Bits Torx Head with Hole
Wera 066934 T40 x 50mm Torx Bit - 5/16" Drive $13.26

Wera 066934 T40 x 50mm Torx Bit - 5/16" Drive
TMAX 7 pc T40 Torx Star 6 Point T-40 Screwdriver Impact Ready 1 Inch Length Insert Bits Hex Shank with Quick Release Slot $16.97

TMAX 7 pc T40 Torx Star 6 Point T-40 Screwdriver Impact Ready 1 Inch Length Insert Bits Hex Shank with Quick Release Slot
Uxcell T40 Security Torx Bit 1/4" Hex Shank 6" S2 Steel Magnetic Tamper Resistant Star Bits Torx Head with Hole $9.77

Uxcell T40 Security Torx Bit 1/4" Hex Shank 6" S2 Steel Magnetic Tamper Resistant Star Bits Torx Head with Hole
S-K Hand Tool SK81935 0.37 in. Drive T40 Replacement Extra Long Torx Bit $29.64

S-K Hand Tool SK81935 0.37 in. Drive T40 Replacement Extra Long Torx Bit
FAQ
What size is a T40 Torx bit?
T40 refers to the Torx drive size—the six-point star pattern that fits a T40 screw head. It doesn’t describe the bit’s length or shank style. On this page you’ll find T40 bits in different formats to match your tool and task.
- Shank: Most T40 bits use a 1/4-inch hex shank for drill/drivers and bit holders. Some are bit sockets for ratchets.
- Lengths: Options commonly include short (about 1–2.5 in.), medium (3–4 in.), and extra-long (6 in.+) for deep recesses.
- Types: Standard T40 and security T40 (with a center hole) for tamper-resistant screws.
If your screw has a center pin, choose a security T40. When in doubt, a multi-size Torx set (T5–T40) can help you confirm the right fit.
Is a star bit the same as Torx?
People often say “star bit” when they mean Torx. Torx is a specific six-point star drive system identified by T sizes (like T40). There are also star-like drives that aren’t Torx, so it’s helpful to double-check what you have.
- Torx (6-point): The common star pattern. Labeled T5–T40 and beyond.
- Security Torx: Same 6-point shape, but the bit has a center hole to fit screws with a center pin.
- Other stars: Some 5-point or specialty stars look similar but won’t match Torx sizes.
To avoid stripping, match the bit to the exact screw style and size. If your fastener is stamped with a T size, you’re working with Torx.
What size bolt uses a T40 bit?
T40 describes the drive size in the screw head, not the bolt’s diameter or thread. There isn’t a universal bolt size for T40; manufacturers use Torx drives across different bolt sizes in automotive, appliance, and home projects.
- Check markings: Some fasteners are labeled with the Torx size (e.g., T40).
- Test-fit gently: A T40 bit should seat fully with minimal wiggle. If it cams out, switch sizes.
- Use the right type: If there’s a center pin in the screw head, choose a security T40 bit with a hole.
- Avoid force: Apply straight, steady pressure and moderate torque to reduce stripping.
A Torx bit set (T5–T40) can help you quickly confirm the best fit on mixed fasteners.
No Torx bit—what can I use instead?
For safety and a clean result, it’s best to use the correct Torx bit. Improvised tools may slip, damage the fastener, or injure you. If you don’t have one on hand, these options can help:
- Pick up a bit or set: Order a Torx or security Torx bit (if your screw has a center pin) for pickup or delivery.
- Use a hand driver: Pair the right bit with a manual handle for more control on delicate tasks.
- Free a stuck screw first: Consider a penetrating lubricant and proper bit engagement rather than extra force.
Using flathead or hex drivers as substitutes is generally not recommended, as it can strip the screw head.
Will a T40 bit work in my drill?
Yes, many T40 bits are designed for drill/drivers. Look for a 1/4-inch hex shank, which fits most chucks and bit holders. If you’re using an impact driver, choose impact-rated bits for durability.
- Choose the right length: Short bits (about 1–2.5 in.) offer better control; long bits (4–6+ in.) reach into deep recesses.
- Magnetic tips: These can help hold the screw for easier starts.
- Speed and pressure: Use moderate speed and firm, in-line pressure to reduce cam-out.
- Security screws: If the screw has a center pin, use a security T40 bit with a hole.
Always match the bit style and size to the fastener to help prevent damage.
Popular in Shop T40 Torx Bits for Security Screws
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