Mitsubishi Uni Nano Diamond Colour Core Mechanical Pencil Refill - 0.5mm

£3.50
Earn points
24 Mar. Estimated arrival
21 Mar. Order placed
22-23 Mar. Order dispatches
24 Mar. Delivered!
🚚 Order within the next 2 hours, 15 minutes for delivery by 24 Mar, 2026.
Description

The Mitsubishi Uni Nano Diamond Colour Core 0.5mm refill is what happens when materials science quietly improves your everyday writing. Infused with nanodiamond particles, this lead delivers impressively smooth performance with remarkable strength. Carefully selected graphite is densely and evenly aligned to produce clear, dark lines with reduced friction — so your pencil glides rather than drags.

Stronger than previous colour cores by approximately 40% at the tip, it resists breakage while maintaining excellent erasability. You can write boldly, erase cleanly, and rewrite without ghosting or compromise. In short: colour, clarity, and resilience, all in one slender stick of lead.

Precision in the Details

  • Nanodiamond Reinforced Strength: Always delivers a super-strong core with significantly improved tip durability.

  • Smooth, Low-Friction Writing: Evenly aligned graphite and nanodiamond particles reduce friction for a consistently fluid line.

  • Clear and Dark Output: Produces crisp, legible colour lines without sacrificing smoothness.

Details

  • Dimensions: W20mm x H77mm x D7mm
  • Core Diameter: 0.5
  • Package: 20 pcs pencil refill
  • Materials: PC resin/Black charcoal
  • Country of Origin: Japan

The Mitsubishi Uni Nano Diamond Colour Core 0.5mm refill is what happens when materials science quietly improves your everyday writing. Infused with nanodiamond particles, this lead delivers impressively smooth performance with remarkable strength. Carefully selected graphite is densely and evenly aligned to produce clear, dark lines with reduced friction — so your pencil glides rather than drags.

Stronger than previous colour cores by approximately 40% at the tip, it resists breakage while maintaining excellent erasability. You can write boldly, erase cleanly, and rewrite without ghosting or compromise. In short: colour, clarity, and resilience, all in one slender stick of lead.

Precision in the Details

  • Nanodiamond Reinforced Strength: Always delivers a super-strong core with significantly improved tip durability.

  • Smooth, Low-Friction Writing: Evenly aligned graphite and nanodiamond particles reduce friction for a consistently fluid line.

  • Clear and Dark Output: Produces crisp, legible colour lines without sacrificing smoothness.

Details

  • Dimensions: W20mm x H77mm x D7mm
  • Core Diameter: 0.5
  • Package: 20 pcs pencil refill
  • Materials: PC resin/Black charcoal
  • Country of Origin: Japan
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Delivery & Returns

 

Orders £35+ UK Royal Mail delivery within 5 days, Monday to Friday. Free on orders over £35.  FREE
Tracked Delivery 48

Royal Mail 48, tracked. Delivery within 48 hours, Monday to Friday. Tracking number provided.

£3.99
Tracked Delivery 24

Royal Mail 24, tracked. Delivery within 24 hours, Monday to Friday. Tracking number provided.

£4.99
Next Day Delivery Delivery on the following working day on orders purchased before 12:00pm, 5 days a week. You'll receive a tracking number with updates about the progress of your order. Signature required.

£7.99

International Delivery

Shipping costs are calculated automatically at the checkout when both the destination and delivery service are selected.

Calculated at checkout
Customs & Import Charges In some cases, customs and import duties may be charged as your parcel reaches its destination country. The Journal Shop has no control over these charges and we can't tell you what the cost would be, as they will vary from country to country. Any charges on a parcel must be paid by the person receiving the parcel. To be paid by customer