Bare Copper Wire – 18 SWG, 250g Reel (1.25 mm Diameter)

This 18 SWG Bare Copper Wire is supplied on a 250 g reel and offers excellent conductivity, flexibility, and durability for a wide range of laboratory and classroom applications. With a wire diameter of approximately 1.25 mm, it is ideal for physics experiments, circuit construction, electromagnetism activities, and general electrical work.

Made from high‑purity copper, the wire provides low resistance and reliable performance, making it suitable for both teaching and technician use. Its bare finish allows for easy cutting, shaping, and connection without the need to strip insulation.

Key Features

• 250 g reel of bare copper wire
• 18 SWG (Standard Wire Gauge)
• Approx. 1.25 mm diameter
• Made from high‑conductivity copper
• Easy to cut, bend, and shape as needed
• Perfect for electrical, physics, and engineering tasks
• Suitable for repeated classroom and workshop use

Ideal for School Science Lessons & Practical Activities

This bare copper wire is a valuable resource for KS3, GCSE, and A‑Level Physics, allowing students to explore fundamental electrical principles through hands‑on experimentation. Common uses include:

• Constructing simple circuits and electrical components
• Demonstrating current, voltage, and resistance
• Building electromagnets and solenoids
• Investigating heating effects of current
• Connecting components on circuit boards and power supplies
• Supporting technician tasks in preparing custom wiring setups

Reliable, conductive, and easy to work with, this 18 SWG Copper Wire is an essential material for any school science laboratory or physics department.