Spline Socket, Universal Spline Socket
- Tien-i Spline socket design is compatible with all common fasteners: SAE, Metric, Hex, 6 Point, and 12 Point.
- Carry fewer tools with our socket's wider range of applications.
- Suitable for SAE and metric 6, 8, and 12 point hex, e(star), square, splined, and damaged heads (25%).
- Ideal applications like tamper-proof lug nuts, cylinder head bolts, and engine bolts.
- Taiwan made Chrome Vanadium (CR-V) steel tempered with Tien-i proprietary heat treatment process to withstand more torque
- Full Polish Nickel Chrome Finish ensures durability and corrosion resistance
- Socket geometry design to grip flat sides of fastener head, not corners, preventing round-off
- Meets or exceeds ANSI & DIN & ISO performance standard
1/4" Drive Spline Socket
Item No. | S(mm) | S(inch) | L | D1(mm) | D2(mm) | G |
---|---|---|---|---|---|---|
QCR29204 | 4 | 5/32" | 25 | 12 | 7.4 | 11 |
QCR292045 | 4.5 | 11/64" | 25 | 12 | 8 | 11.1 |
QCR29205 | 5 | 3/16" | 25 | 12 | 8.6 | 11.1 |
QCR292055 | 5.5 | 7/32" | 25 | 12 | 9.2 | 10.9 |
QCR29206 | 6 | 1/4" | 25 | 12 | 9.8 | 11.2 |
QCR29207 | 7 | 9/32" | 25 | 12 | 11 | 11 |
QCR29208 | 8 | 5/16" | 25 | 13 | 13 | 14.7 |
QCR29209 | 9 | 11/32" | 25 | 14 | 14 | 16.9 |
QCR29210 | 10 | 3/8" | 25 | 16 | 16 | 22.4 |
QCR29211 | 11 | 7/16" | 25 | 16 | 16 | 19.8 |
QCR29212 | 12 | 15/32" | 25 | 18 | 18 | 27.2 |
QCR29213 | 13 | 1/2" | 25 | 19 | 19 | 28 |
QCR29214 | 14 | 9/16" | 25 | 20 | 20 | 36 |
3/8" Drive Spline Socket
Item No. | S(mm) | S(inch) | L | D1(mm) | D2(mm) | G |
---|---|---|---|---|---|---|
QCR39206 | 6 | 1/4" | 28 | 17 | 10 | 23 |
QCR39207 | 7 | 9/32" | 28 | 17 | 11.5 | 23 |
QCR39208 | 8 | 5/16" | 28 | 17 | 12.7 | 23 |
QCR39209 | 9 | 11/32" | 28 | 17 | 14 | 24 |
QCR39210 | 10 | 3/8" | 28 | 17 | 15.5 | 24 |
QCR39211 | 11 | 7/16" | 28 | 17 | 17 | 24 |
QCR39212 | 12 | 15/32" | 28 | 18.5 | 18.5 | 29 |
QCR39213 | 13 | 1/2" | 28 | 20 | 20 | 31 |
QCR39214 | 14 | 9/16" | 28 | 21 | 21 | 34 |
QCR39215 | 15 | 19/32" | 28 | 22 | 22.2 | 45 |
QCR39216 | 16 | 5/8" | 30 | 23 | 23 | 45 |
QCR39217 | 17 | 21/32" | 30 | 25 | 24 | 59 |
QCR39218 | 18 | 11/16" | 30 | 26 | 23 | 59 |
QCR39219 | 19 | 3/4" | 30 | 27 | 27 | 68 |
QCR39220 | 20 | 25/32" | 30 | 28 | 28 | 81 |
QCR39221 | 21 | 13/16" | 32 | 30 | 30 | 81 |
QCR39222 | 22 | 7/8" | 32 | 31 | 31 | 92 |
QCR39223 | 23 | 32 | 32 | 32 | 120 | |
QCR39224 | 24 | 15/16" | 32 | 34 | 34 | 120 |
1/2" Drive Spline Socket
Item No. | S(mm) | S(inch) | L | D1(mm) | D2(mm) | G |
---|---|---|---|---|---|---|
QCR49208 | 8 | 5/16" | 38 | 22.2 | 13.8 | 50 |
QCR49209 | 9 | 11/32" | 38 | 22.2 | 15 | 50 |
QCR49210 | 10 | 3/8" | 38 | 22.2 | 16.2 | 51 |
QCR49211 | 11 | 7/16" | 38 | 22.2 | 17.5 | 51 |
QCR49212 | 12 | 15/32" | 38 | 22.2 | 18.7 | 52 |
QCR49213 | 13 | 1/2" | 38 | 22.2 | 20 | 52 |
QCR49214 | 14 | 9/16" | 38 | 22.2 | 21 | 52 |
QCR49215 | 15 | 19/32" | 38 | 23.5 | 22.2 | 62 |
QCR49216 | 16 | 5/8" | 38 | 23.5 | 22.2 | 58 |
QCR49217 | 17 | 21/32" | 38 | 25 | 23 | 67 |
QCR49218 | 18 | 11/16" | 38 | 26 | 23.5 | 73 |
QCR49219 | 19 | 3/4" | 38 | 27 | 24 | 70 |
QCR49220 | 20 | 25/32" | 38 | 28 | 24 | 66 |
QCR49221 | 21 | 13/16" | 38 | 30 | 24 | 78 |
QCR49222 | 22 | 7/8" | 38 | 31 | 26 | 90 |
QCR49223 | 23 | 38 | 32 | 28 | 100 | |
QCR49224 | 24 | 15/16" | 38 | 34 | 28 | 109 |
QCR49227 | 27 | 1-1/16" | 42 | 37 | 30 | 145 |
QCR49230 | 30 | 1-3/16" | 42 | 41 | 34 | 182 |
QCR49232 | 32 | 1-1/4" | 42 | 44 | 36 | 212 |

High Torque Strength
Meets at least 1.2 times the ANSI test torque standard. Verified by a single cycle test in which torque is applied up to a specified value without failure or permanent deformation.

Fully Stepped Shoulders
Fully stepped shoulders allows better access to tight cavities.

Permanently roller stamp. Large on curved face of the socket.

From polish to mat, from dark to gray, and color also will be option for every product manager and designer.

Groove or Color Ring and knurled base section, giving the sockets distinctive appearance and handy feeling.

Tien-I is a member of China Steel Corporation (CSC), the leading steel company in Taiwan.
What kind of factory is Tien-i?
Tien-I is a manufacoturer at professional designing tool kit and producing OEM/ODM products.
Is the bit head magnetic?
Please provide the sample or the photo for us reference to see which bits you ask for.
What is the popular size of impact sockets?
What kind of tool kit do you want? And what’s the sales territory? Different countries have different popular sizes. Welcome to send us an email for further discussion. .
What is the popular size of chrome sockets?
What kind of tool kit do you want? And what’s the sales territory? Different countries have different popular sizes. Welcome to send us an email for further discussion.
What is the difference between impact socket and chrome socket? Why is CR-V material not suitable at producing impact sockets?
Tien-i's hand sockets are made of Cr-V steel (CR-V).
Compared with the raw material "CR-V" for hand sockets, the raw material for pneumatic sockets, CR-MO, has stronger toughness, i.e. stronger shock resistance. Suitable for use with air and electric guns. CR-V steel (CR-V) has higher hardness, but in the need for shock-resistant use environment will lead to reduced service life.
to know more about hand socket and impact socketHow to get the Tien-I catalog?
How to inquiry the products which does not in the Tien-I’s catalog?
Please contact our sales team. It’s welcome to provide the relative drawing or sample and the product sales information.
Please contact our sales team. It’s welcome to provide the relative drawing or sample and the product sales information.