Question 1

What makes the SATA ST97521ST a dual-function wire stripper and crimper, and how does that help me on site?

Accepted Answer

The ST97521ST combines calibrated stripping jaws with both insulated and non-insulated crimp nests in one tool. This lets you strip insulation cleanly and then terminate wires with the appropriate crimp in a single action, improving speed and reducing tool changes on site.

Question 2

Which wire sizes can I work with using the ST97521ST?

Accepted Answer

The tool is designed for a wide range of wires and includes clear AWG/mm² markings to help you pick the correct stripping and crimping settings. It supports common small to medium gauge wires used in electrical installations and device terminations.

Question 3

What are the key build features of this stripper/crimper?

Accepted Answer

It uses high-quality materials for durability, a robust hinge for repeat use, and ergonomic grips for comfort and control during extended work sessions. The design is compact and lightweight for tight spaces.

Question 4

How do I properly use the built-in stripping gauge on the ST97521ST?

Accepted Answer

Hold the tool and align the conductor with the gauge markings, squeeze the handles to strip to the desired length, and inspect the conductor to ensure there’s no insulation damage. If needed, adjust the stripping depth by selecting the appropriate jaw setting before stripping.

Question 5

How do I choose between insulated and non-insulated crimp nests?

Accepted Answer

Use insulated crimp nests when terminating with insulated terminals (common in device and panel connections) and non-insulated nests for non-insulated terminals. This ensures a secure, standards-compliant crimp for the terminal type you’re using.

Question 6

What kinds of applications is the ST97521ST best suited for?

Accepted Answer

It’s excellent for panel work and device installations, including electrical runs in cabinets, conduits, and towers. Its dual-functionality makes it a good fit for both on-site electrical tasks and DIY electrical projects.

Question 7

What maintenance or care does this tool require to stay reliable?

Accepted Answer

Keep the tool clean and dry after use, wipe away any debris, and store in a dry place. If needed, apply a light, plastic-safe lubricant to the hinge to maintain smooth operation. Inspect jaws and nests for wear and replace if performance declines.

Question 8

What safety practices should I follow when using the ST97521ST?

Accepted Answer

Wear appropriate PPE (eye protection and gloves as needed), keep fingers away from the jaws while squeezing, and ensure the tool is not used on damaged wires. Use the correct jaw setting for the wire size to avoid nicking conductors or creating weak crimps.

Question 9

How durable is the ST97521ST and what affects its lifespan?

Accepted Answer

Constructed from durable materials and designed for repetitive use, its lifespan depends on wire sizes used, how often you switch between stripping and crimping, and proper maintenance. Regular inspection for jaw wear and cleaning will extend service life.

Question 10

How does the ST97521ST compare to other similar tools on Fepy.com?

Accepted Answer

For quick side-by-side views, you can explore related options like the SATA ST97520ST (a closely related model with similar dual functionality) at https://fepy.com/product/sata-st97520st-electrical-wire-stripper-and-crimper and the SATA ST97522ST compact variant at https://fepy.com/product/sata-st97522st-compact-wire-stripper-and-crimper. These offer different form factors while retaining the dual-stripping and crimping capability.

Question 11

Are there any common issues with this tool and how can I troubleshoot them?

Accepted Answer

If stripping isn’t clean, check that you’re using the correct jaw setting for the wire gauge and that the wire is properly supported. If crimps feel loose, ensure you’re using the correct crimp nest and that the terminal is seated fully before crimping.

Question 12

What is the return policy if I’m not satisfied with the ST97521ST?

Accepted Answer

Fepy generally supports product returns under their standard policy. If you’re considering a return, contact Fepy’s support or review the return options on the order page for eligibility, timeframe, and any required steps.

كماشة تجريد الأسلاك الكهربائية ساتا (ST97521ST)

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Frequently Asked Questions