Mechanical pencil lead refill Q-Connect KF01548 HB 0.7 mm Black

Q-Connect KF01548 HB 0.7 mm Black mechanical pencil leads are polymer HB refills designed for standard 0.7 mm mechanical pencils. Each refill tube contains high-polymer leads that balance darkness and wear for general-purpose writing, note-taking, technical drawing and everyday office or school use. The leads are produced for consistent line quality and compatibility with most 0.7 mm mechanisms.

Advantages

These high-polymer HB leads offer reliable darkness and moderate abrasion resistance suitable for mixed tasks. The 0.7 mm diameter provides a stable line with reduced breakage compared with thinner leads, while ensuring legible text and clear technical lines. Packaged in refill tubes, the product is convenient to store and transport and matches standard 0.7 mm mechanical pencil systems.

Suitable for

• Everyday writing and note-taking in school and office environments
• Technical drawings and sketches requiring a medium-thickness line
• Filling forms, annotations and general-purpose drafting
• Refilling compatible 0.7 mm mechanical pencils for continuous use

Key specifications

• Lead hardness: HB
• Diameter: 0.7 mm
• Material: high-polymer lead
• Colour: black
• Packaging: refill tubes, multiple tubes per pack

How to use

Open the refill tube and insert a single lead into the barrel of a compatible 0.7 mm mechanical pencil following the pencil manufacturer’s loading instructions. Advance the lead using the pencil’s mechanism and replace leads as they wear. Store unused lead tubes in a dry place to prevent contamination and avoid forcing oversized pieces into the pencil to reduce the risk of breakage.

Usage recommendations

For best results, use these 0.7 mm HB polymer leads with mechanical pencils specified for 0.7 mm refills. Replace worn erasers and clean the pencil tip if residue accumulates. For technical drawing, keep a steady pressure to maintain consistent line width and reduce lead breakage.