Torque Wrenches
Choose a torque wrench based on its torque range, drive size, and accuracy. The target torque should be in the middle of the range. Drive sizes from 1/4 to 3/4 inch fit most sockets. A ratchet with more teeth reduces the swing angle, perfect for tight spaces. Consider the length for leverage and whether the wrench has a hanging loop. Compare these features to select the right torque wrench for your workshop.
Digital Torque Wrench | 10 mm (3/8") | 27 - 135 Nm
Digital Torque Wrench | 12.5 mm (1/2") | 40 - 200 Nm
Digital Torque Wrench | 6.3 mm (1/4") | 6 - 30 Nm
Torque Wrench | 10 mm (3/8") | 20 - 110 Nm
Torque Wrench | 10 mm (3/8") | 20 - 120 Nm
Torque Wrench | 10 mm (3/8") | 5 - 25 Nm
Torque Wrench | 10 mm (3/8") | 7 - 105 Nm
Torque Wrench | 12.5 mm (1/2") | 40 - 220 Nm
Torque Wrench | 12.5 mm (1/2") | 60 - 330 Nm
Torque Wrench | 20 mm (3/4") | 200 - 800 Nm
Torque Wrench | 25 mm (1") | 300 - 1500 Nm
Torque Wrench | 6.3 mm (1/4") | 1 - 6 Nm
Torque Wrench | 6.3 mm (1/4") | 5 - 25 Nm
Torque Wrench | 10 mm (3/8") | 20 - 120 Nm
Torque Wrench | 12.5 mm (1/2") | 40 - 210 Nm
Torque Wrench | 12.5 mm (1/2") | 70 - 350 Nm
Torque Wrench | 12.5 mm (1/2") | 70 - 350 Nm
Torque Wrench | 20 mm (3/4") | 100 - 500 Nm
Torque Wrench | 20 mm (3/4") | 100 - 700 Nm
Torque Wrench | 20 mm (3/4") | 150 - 1000 Nm
Torque Wrench | 25 mm (1") | 140 - 980 Nm
Torque Wrench | 6.3 mm (1/4") | 6 - 30 Nm
Torque Wrench | 10 mm (3/8") | 20 - 120 Nm
Torque Wrench | 12.5 mm (1/2") | 40 - 210 Nm
Choosing the Right Torque Wrench
Torque range and drive size
Start with the torque range you need. The target torque should fall within the range, ideally in the middle. This gives you the best accuracy. Then choose the drive size. 1/4 inch fits small sockets, 1/2 inch is standard for cars. 3/4 inch is for trucks and heavy work.
Where ordering goes wrong
Many mechanics order a torque wrench with too large a range. Then they use the lower part of the scale. Accuracy is worse there. Also check the length of the wrench. A long wrench gives more leverage but may not fit everywhere. Measure the space you work in.
Ratchet head and accuracy
A ratchet head with many teeth moves in small steps. That helps in tight spots. Also look at accuracy. The DIN ISO 6789 standard divides wrenches into classes. A class A wrench is more accurate than class B. For engine rebuilding you need class A; for wheel nuts class B is fine.
A torque wrench is a torque tool. If you choose other insert tools, you swap the head. With torsion bars you protect your wrench from overload. For angular torque and other tasks you use torque accessories. If your wrench loses accuracy, a repair set for torque wrenches helps.