What are the common torque wrench models and specifications?
2 Answers
Specification ranges are 1-5N, 5-25N, 10-50N, 20-100N, 40-200N, 70-350N. More details are as follows: 1. Classification: Torque wrenches, also known as torque spanners or adjustable torque wrenches, are a type of wrench. According to power source, they can be divided into: electric torque wrenches, pneumatic torque wrenches, hydraulic torque wrenches, and manual torque wrenches; manual torque wrenches can be further categorized into: preset type, fixed value type, dial type, digital display type, slip type, bending type, and kilogram wrenches. 2. Range: The measurement range of a measuring tool. Determined by the tool's graduation value and maximum measurement value.
I frequently use torque wrenches for car repairs, with a variety of commonly used models and specifications. The dial-type torque wrench is the most common, starting from a small 1/4-inch drive suitable for screws or electronic components, with a torque range of 20-50Nm. The 3/8-inch medium drive is the most widely used, suitable for car hubs and engine covers, with a range of 40-150Nm. The 1/2-inch large drive handles heavy-duty tasks, capable of exceeding 200Nm. In terms of brands, there are budget options like domestic brands or professional-grade ones like Snap-on, with prices ranging from a few hundred to several thousand yuan. Regular calibration is recommended, and avoid exceeding the limits to prevent tool damage and part harm. In practical use, different scenarios apply—for example, I often use a 3/8-inch wrench with 80-120Nm for installing tires to ensure safety and durability. For maintenance, always reset to zero after use and store properly to extend its lifespan.
