2/ What range of screw head diameters does it support?

It accommodates screw head sizes from φ3 mm to φ8 mm, making it suitable for most standard pan‐head machine screws.

3/ What are the length and weight specifications?

The pliers measure 150 mm in overall length and weigh just 125 g, offering a balanced design for ease of handling and reduced user fatigue.

4/ What material and hardness rating does the tool feature?

The body and jaws are forged from high‐carbon S58C steel, and the jaws are heat‐treated to HRC 56 ± 2 for superior strength and wear resistance.

5/ How do the serrated jaws enhance screw removal?

The vertically and horizontally serrated inner jaws bite into damaged or corroded screw heads, generating high-friction torque to unfasten screws that standard drivers cannot grip.

6/ Can the PZ-55 also function as a nut or bolt driver?

Yes, its powerful torque and compact jaws allow it to drive nuts or bolts, especially in tight spaces where conventional wrenches cannot reach.

7/ Is the PZ-55 RoHS compliant?

The pliers comply with RoHS standards, ensuring they contain no hazardous substances like lead or cadmium above regulated limits.

8/ What are the primary applications for these pliers?

Common uses include DIY tasks, electronics and smartphone repair, industrial machinery maintenance, HVAC and drainage work, and any scenario requiring removal of stuck screws.

9/ How should I maintain and store the PZ-55?

After use, wipe off debris, apply a light oil film to the pivot and jaws to prevent corrosion, and store in a dry place away from chemicals.