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Universal Joints
Product Range
Universal joint is a coupler interposed between double hex sockets and driving tool. Universal joint is useful for tightening nuts located at difficult/angular positions. Industrial universal joints are available from ¼" to 1" square drives.
| Part No. | Sq. Dr. | Head Dia | Approx OAL |
| UJ0 | 1/4" | 14.0 | 40 |
| UJ1 | 3/8" | 22.0 | 50 |
| UJ2 | 1/2" | 26.0 | 78 |
| UJ3 | 3/4" | 43.0 | 110 |
| UJ4 | 1" | 63.0 | 158 |
Stud tighteners have been developed for the speedier tightening of threaded studs with an impact wrench, and are ideal for use in the assembly and maintenance of engines. Each has a cross-hole and groove for the locking pin and ring. The standard sizes are listed below; the range extends to stud diameters of M36, in square drives up to 1".
3/8" Sq. Drive Stud Tightener (Metric)
| Part No. | Stud Size & Pitch | Stud End. Dia | Drive End Dia | Thread Length | Approx OAL |
| ST 1-6 | M 6x1 | 11.4 | 19.0 | 10 | 35 |
| ST 1-7 | M 7x1 | 12.7 | 19.0 | 10 | 35 |
| ST 1-8 | M 8x1.25 | 13.9 | 19.0 | 12 | 37 |
| ST 1-8/1 | M 8x1 | 13.9 | 19.0 | 12 | 37 |
| ST 1-10 | M 10x1.5 | 16.4 | 19.0 | 14 | 40 |
| ST 1-10/1.25 | M 10x1.25 | 16.4 | 19.0 | 14 | 40 |
An extension bar is a coupler that helps the operator to reach nuts and bolts in inaccessible places, or where a driving tool cannot reach the socket or lacks clearance. One end of the bar is a male square drive, which fits into the square drive of the socket; the other end is a female square drive, which accepts the driving tool. Both ends are of the same size. Extension bars and square drive adaptors are available for manual and impact use.
| Part No. | Sq. Drive | Head Dia | Shank Dia | Approx OAL |
| EB0-55 | 1/4" | 14.0 | 8.0 | 55 |
| EB0-100 | 1/4" | 14.0 | 8.0 | 100 |
| EB0-150 | 1/4" | 14.0 | 8.0 | 150 |
| EB1-75 | 3/8" | 19.0 | 12.6 | 75 |
| EB1-150 | 3/8" | 19.0 | 12.6 | 150 |
| EB1-300 | 3/8" | 19.0 | 12.6 | 300 |
| EB2-75 | 1/2" | 24.0 | 16.5 | 75 |
| EB2-125 | 1/2" | 24.0 | 16.5 | 125 |
| EB2-250 | 1/2" | 24.0 | 16.5 | 250 |
| EB3-210 | 3/4" | 43.0 | 24.0 | 210 |
| EB3-430 | 3/4" | 43.0 | 24.0 | 430 |
| EB4-200 | 1" | 54.0 | 34.0 | 200 |
| EB4-400 | 1" | 54.0 | 34.0 | 400 |
Square Drive Adaptors are used as a convertor to permit use of sockets and driving tools to different drive sizes. These are available in various combinations, ¼" Fx3/8"M, 3/8"Fx1/2"M, ½"Fx3/4"M, 1"Fx3/4"M, 1"Fx1 ½"M and vice versa. These are available for manual as well as impact use. For impact use, provision for locking ring and pin is there.
| Part No. | Sq. Dr. Female | Sq. Dr. Male | Drive End Dia | Approx OAL |
| ISA0-1 | 1/4" | 3/8" | 14.0 | 27 |
| ISA1-0 | 3/8" | 1/4" | 20.0 | 32 |
| ISA1-2 | 3/8" | 1/2" | 21.0 | 38 |
| ISA2-1 | 1/2" | 3/8" | 26.0 | 38 |
| ISA3-2 | 3/4" | 1/2" | 48.0 | 57 |
| ISA2-3 | 1/2" | 3/4" | 28.0 | 50 |
| ISA3-4 | 3/4" | 1" | 48.0 | 65 |
| ISA4-3 | 1" | 3/4" | 58.0 | 70 |
| ISA4-5 | 1" | 1 1/2" | 58.0 | 90 |
| ISA5-4 | 1 1/2" | 1" | 86.0 | 110 |
| ISA5-6 | 1 1/2" | 2 1/2" | 86.0 | 135 |
| ISA6-5 | 2 1/2" | 1 1/2" | 127.0 | 165 |
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Torque Master Tools Private Limited
Address : E-14 & E-15, Industrial Focal Point, Derabassi. Punjab-140507. India.
Mobile : +91-9463878987
Phone : +91-1762-498014, 498015
Email : info@torquemaster.in, info@torquemasterindia.com
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