The SUNHENG digital torque products and homogeneity of the product comparison table.
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The alert system of the product has two alert methods (sound and vibration alerts), if the products are utilized in the highly noisy environment, the alert system will efficiently delivery messages to you through the vibration alert.
The different specifications of the screw have the different tightness. You can refer the specifications provided by website of International Standard to evaluate screws tightness.