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

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Spec Size Chart

Download All Spec Size Chart

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

Product Detail

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.

Large Stamped Markings

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

Surface Treatment

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

Knurling, Groove, Color Ring

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

Material Quality

Tien-I is a member of China Steel Corporation (CSC), the leading steel company in Taiwan.

Contact Tien-i

In order to purchase or customize products, and learn more information about your MOQ deal.
Contact Tien-i service center to start your purchase procedure.

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Ｑ＆Ａ

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 socket