UGREEN 35971 NW304 8P/6P/4P Crimper, Cutter & Stripper
Overview
UGREEN 35971 is a professional multi-position modular-plug hand tool combining crimping, cable cutting and outer-jacket stripping. Its labelled dies handle compatible 8P, 6P and 4P modular plugs, while separate blade areas cut cable and remove a compatible outer jacket. Below: selection, installation, compatibility, real limitations and safe use without treating a passive accessory as active networking equipment.
- 8P / 6P / 4P • CRIMP • CUT • STRIP
- SKU 35971
- ACTIVE product
- 8P / 6P / 4P • CRIMP • CUT • STRIP
What it does well.
Key features
Role. Its labelled dies handle compatible 8P, 6P and 4P modular plugs, while separate blade areas cut cable and remove a compatible outer jacket.
Compatibility boundary. Compatible standard modular plugs and cable that fit the labelled die and stripping area. Cable category names describe intended preparation work; they do not make every Cat5–Cat8 plug geometry compatible.
Performance reality. A crimping tool can form contacts but cannot certify wiring, category or link speed. Every finished lead must still be inspected and tested.
Important exclusion. This is not a LAN tester, tone generator, punch-down tool, pass-through flush cutter or universal die for every shielded/oversized/proprietary modular plug.
Where it fits in the connection
The system rule: every stage must match. The lowest-rated, damaged or incorrectly terminated component can limit speed, reliability, shielding, PoE operation or serviceability.
Use scenarios
Scenario 1. Assembling compatible 8P Ethernet patch leads.
Scenario 2. Preparing 6P or 4P telephone-style modular leads when die and plug match.
Scenario 3. Cutting and stripping cable during field repair or rack work.
Scenario 4. Home-lab and professional maintenance followed by proper cable testing.
Compatibility and selection guide
Use when. Compatible standard modular plugs and cable that fit the labelled die and stripping area. Cable category names describe intended preparation work; they do not make every Cat5–Cat8 plug geometry compatible.
Do not assume. not a LAN tester, tone generator, punch-down tool, pass-through flush cutter or universal die for every shielded/oversized/proprietary modular plug. Before bulk purchase: trial the cable, module, plug or rack fit and complete one tested installation. Small physical differences can matter even within the same category name.
Setup and usability guidance
Work cleanly: dust, copper scraps and loose braid strands can create faults. Collect offcuts and inspect the finished area before energising connected equipment.
- Step 1: Choose the die marked for the plug position count and confirm the plug seats correctly before loading cable.
- Step 2: Use the cutter with fingers clear and support the cable so the cut is square.
- Step 3: For stripping, place only the outer jacket in the correct blade area and rotate gently; do not cut conductor insulation.
- Step 4: Arrange and insert conductors into the compatible plug, then seat the plug fully in the correct die.
- Step 5: Squeeze the handles through one controlled complete crimp; never place fingers near the die or blades.
- Step 6: Inspect contacts and strain relief, then use a separate tester before deploying the cable.
Compatible devices and systems
Network endpoints. Routers, switches, access points, computers, printers, smart televisions, cameras and other RJ45 network equipment only through a correctly built compatible link.
Structured cabling. Wall outlets, patch panels, permanent cable and patch leads must share a suitable category, shielding design and wiring scheme.
PoE equipment. Possible only within the boundary: The tool carries no network signal. PoE suitability is determined by the finished cable system, conductor material/gauge, connector and termination.
Operating systems. No operating-system driver is required for this passive accessory or manual tool; active adapters and switches are separate products.
What this product does
- Provides its documented function: Its labelled dies handle compatible 8P, 6P and 4P modular plugs, while separate blade areas cut cable and remove a compatible outer jacket.
- Supports the stated compatibility class: Compatible standard modular plugs and cable that fit the labelled die and stripping area. Cable category names describe intended preparation work; they do not make every Cat5–Cat8 plug geometry compatible.
- Can form part of a serviceable labelled network: when installed with matched components and tested.
- Keeps infrastructure modular: damaged or changed portions can be traced and replaced without rebuilding unrelated equipment.
- Uses no software: this product is passive or manual and has no configuration app.
What this product does not do
- It is not a LAN tester, tone generator, punch-down tool, pass-through flush cutter or universal die for every shielded/oversized/proprietary modular plug.
- It does not upgrade a lower-category cable or repair split pairs, poor conductor material, corrosion or bad device ports.
- It does not guarantee PoE, bandwidth or error-free operation without a compliant complete link.
- It does not remove the need for correct tools, installation practice, labelling and testing.
- It should not be installed outdoors, in wet areas or beside mains wiring without a suitable compliant enclosure and qualified design.
What to do
Match. Match this SKU: use the title, construction and limits for 35971 rather than borrowing specifications from a similar family member.
Check. Check the complete path: confirm cable category, shielding, conductor construction, connector geometry, patch leads and endpoints.
Label. Label both ends: record room/port, wiring scheme and destination so later maintenance does not become guesswork.
Test. Test in stages: verify the cable or module before closing a wall plate or rack, then test again after final assembly.
Protect. Protect bend radius and strain relief: route cable gently and keep load away from contacts, IDC slots and device sockets.
What not to do
Do not force. Do not force parts: a keystone, plug, cable or tool that does not fit cleanly is probably the wrong geometry.
Do not miswire. Do not mix T568A and T568B accidentally: document the chosen scheme and check all eight conductors.
Do not over-untwist. Do not untwist pairs excessively: preserving pair geometry near termination matters to high-frequency performance.
Do not guess. Do not claim speed from appearance: clear housings, gold colour or a category marking do not replace complete-link testing.
Do not reuse damage. Do not use damaged parts: discard cracked housings, bent contacts, dull blades, loose shutters or failed crimp terminations.
Warnings and limitations
model limit: A crimping tool can form contacts but cannot certify wiring, category or link speed. Every finished lead must still be inspected and tested.
- Sharp tools and contacts: keep fingers clear of blades, IDC contacts, trimmed conductors and crimp dies. Wear appropriate eye protection during cutting and termination.
- Indoor low-voltage scope: no outdoor ingress rating is established. Keep the product dry, clean and away from corrosive environments or excessive heat.
- Category is system-wide: a Cat5e, Cat6 or Cat7 label on one part does not upgrade the remaining cable, patch leads, terminations or equipment.
- Test before service: visual inspection is not enough. Verify conductor map and real link negotiation; professional installations may require certification testing.
- Do not work on live mains: networking hardware is low voltage, but wall boxes and racks may be close to hazardous electrical circuits.
Troubleshooting checklist
No link. Confirm both active devices, patch leads and port selections. Then check conductor map, full insertion and the connector/cable fit.
Lower speed than expected. Verify negotiation settings and every component category. Excessive untwist, split pairs and unsuitable cable construction can pass continuity yet fail performance.
Intermittent link. Look for incomplete seating, weak strain relief, damaged latch, nicked conductor, IDC not fully closed or a crimp made with the wrong die.
PoE device restarts. Stop use and inspect conductor material, gauge, contact engagement, heat and the powered equipment budget. Do not continue with a hot or damaged termination.
Shield or noise concern. For shielded products, check end-to-end shield design and grounding practice. Mixing shielded and unshielded parts can defeat the intended system.
Port or label mismatch. Trace one cable at a time, compare labels at both ends and update records immediately after correction.
model check before ordering
Match SKU 35971, product type, port or die count, cable category/construction and package contents. Similar UGREEN networking accessories can look nearly identical while using different shielding, conductor fit, rack format or termination method.
At a glance.
- Brand / SKU
- UGREEN 35971
- Product role
- a professional multi-position modular-plug hand tool combining crimping, cable cutting and outer-jacket stripping
- Product type
- Multifunction modular-plug hand tool
- Model
- NW304
- Die labels shown
- 8P / 6P / 4P
- Functions
- Crimp, cut and strip
- Listed cable work
- Cat5 / Cat6 / Cat7 / Cat8 preparation, subject to plug fit
- Blade
- SK5
- Body
- Q235 carbon steel
- Listed stripping diameter
- Cable under 10mm
- Power
- None; manual
- Tester
- Not included / not built in
- Source
- https://www.ugreenindia.com/products/ugreen-rj45-crimping-tools-pliers-for-cat5-6-7-8-ethernet-lan-network-cutter-stripper-multifunctional-nw304-35971
1 × UGREEN 35971 / NW304 crimping, cutting and stripping tool. Cable, modular plugs and tester are not identified as included.
Devices, cables, racks, wall boxes, modules, tools and testers are not included unless explicitly named above.