Unique-Bargains
Unique-Bargains 20pcs 27mm Micro Strain Relief Cord Boot Protector electrician tool
Pack of 20 black rubber boots protect 4 mm cables from bending at the connector
- FeaturesRubber;Micro;Cable Wire Sleeve;Protective Hose;Spare Parts
- Protects charger cables from bending damage with 27mm rubber boot
- Pack of 20 strain relief protectors covers multiple devices
- Fits 4mm inner diameter wires on phones and power tools
- Compact 11mm max diameter adds minimal bulk to connectors
- Black rubber sleeve resists wear on aviation plugs and drill cables
Micro Strain Relief Boot Kit
This pack supplies twenty black rubber protectors that slip over cable ends to stop sharp bends where wires meet plugs. Each boot measures twenty-seven millimetres long with an inner diameter of four millimetres and a maximum outer diameter of eleven millimetres. They are intended for phone chargers, aviation connectors, power-tool leads and similar light-duty cords. Electricians and hobbyists who regularly repair or build flexible leads will find the quantity convenient.
Practical Limits Of The Sleeve
The four-millimetre bore fits only thin conductors such as USB charging cables or small appliance flex; thicker mains cable will not pass through. Rubber remains pliable at room temperature but can stiffen in prolonged cold, reducing its ability to absorb repeated flexing. The eleven-millimetre flange adds bulk, so tight enclosure glands or moulded plug bodies may not close over the boot. No adhesive or heat-shrink activation is provided; retention relies on friction alone.
Installation Notes And Common Issues
Slide the boot onto the wire before terminating the connector, then push it forward until the flange seats against the plug body. A drop of silicone lubricant eases passage over crimped ferrules or solder joints. If the cable jacket is close to four millimetres the fit can be tight, risking tearing the thin wall during installation. Users sometimes forget to fit the boot before soldering, forcing them to cut and re-terminate the wire.
Highlights
- Protects charger cables from bending damage with 27mm rubber boot
- Pack of 20 strain relief protectors covers multiple devices
- Fits 4mm inner diameter wires on phones and power tools
- Compact 11mm max diameter adds minimal bulk to connectors
- Black rubber sleeve resists wear on aviation plugs and drill cables
Specifications
| Brand | Unique Bargains |
|---|---|
| Features | Rubber;Micro;Cable Wire Sleeve;Protective Hose;Spare Parts |
Questions about this item
How many cord boot protectors are included in this pack?
The pack contains 20 individual protectors, each sized at 27 mm long with a 4 mm inner diameter and an 11 mm maximum outer diameter.
What cable thickness does the 4 mm inner diameter suit in everyday use?
A 4 mm bore fits typical phone-charger leads and similar small-gauge cords, stopping sharp bends right at the connector.
Does the rubber sleeve meet any specific industry standard for strain relief?
No formal standard is cited; the boot is a generic rubber sleeve designed to reduce cable fatigue on chargers, aviation plugs and power-tool cords.
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