Mars micro carbon tube by Staedtler in the current upright design, label printed 0.5 mm F and 12x with OPEN on the cap
Seven-grade Staedtler strip for 0.5 mm leads, 2B to 3H, with F between HB and H
Earlier Mars micro carbon lead tube laid flat, blue body and red end printed 0.5 mm F
Staedtler line width icon reading approx. 0.5 mm in blue
Staedtler ISO lead colour coding icon with yellow, red, white and orange marks for 0.3 to 0.9 mm
Mars micro carbon tube by Staedtler in the current upright design, label printed 0.5 mm F and 12x with OPEN on the cap
Seven-grade Staedtler strip for 0.5 mm leads, 2B to 3H, with F between HB and H
Earlier Mars micro carbon lead tube laid flat, blue body and red end printed 0.5 mm F
Staedtler line width icon reading approx. 0.5 mm in blue
Staedtler ISO lead colour coding icon with yellow, red, white and orange marks for 0.3 to 0.9 mm
Mars micro carbon tube by Staedtler in the current upright design, label printed 0.5 mm F and 12x with OPEN on the cap
Seven-grade Staedtler strip for 0.5 mm leads, 2B to 3H, with F between HB and H
Earlier Mars micro carbon lead tube laid flat, blue body and red end printed 0.5 mm F
Staedtler line width icon reading approx. 0.5 mm in blue
Staedtler ISO lead colour coding icon with yellow, red, white and orange marks for 0.3 to 0.9 mm
Staedtler

Staedtler Mars Micro Carbon Lead 0.5mm F 250 05-F

$1.64
$1.64
RRP $1.87
Or 4 payments of $0.41 with
Add items to a quote for bulk pricing, approvals, or purchase orders.

SKU: SR250 05-F

UPC: 4007817213612

MPN: 250 05-F

F Grade: Between HB And H In 0.5 mm

Staedtler Mars micro carbon 250 05-F: a tube of twelve 0.5 mm leads in the F grade.

F is the grade that sits between HB and H. It writes a touch lighter and firmer than HB, so the point stays sharp longer and the page stays cleaner, but it is still dark enough to read easily. Accountants, engineers and anyone writing small figures in narrow columns often settle on it.

Staedtler state the Mars micro carbon lead is suitable for all mechanical pencils, glides smoothly, is highly flexible and extremely break resistant, and rubs out easily on paper and drawing card. The tube is marked to the ISO colour scheme for 0.5 mm.

In the Mars micro carbon range Staedtler list the F grade in 0.5 mm only, so there is no 0.7 mm or 0.9 mm equivalent.

Continue shopping in pencil lead refills, mechanical pencil leads, mechanical pencils and Staedtler.

Often ordered together

  • 12 leads, 0.5 mm, F grade
  • A little firmer and lighter than HB
  • Clean, sharp line for small writing
  • Break resistant and flexible, per Staedtler
  • Easy to erase on paper and card
  • Fits all 0.5 mm mechanical pencils
  • Figures in ledgers and columns
  • Neat small handwriting
  • Engineering notes and calculations
  • Crosswords and puzzles
  • Graphite 777 and Mars micro pencils

Shipping

Shipping is kept simple with flat rates for selected areas and free shipping where applicable. Large, bulky, rural or out-of-area orders may require additional freight, and our team will contact you if this applies. For a more specific estimate, simply add this product to a quote or visit our shipping page.

Delivery Times

Melbourne, Sydney, Brisbane, Adelaide — 1 to 3 business days
Perth — 1 to 5 business days
Regional & Outer Areas — 3 to 7 business days

Returns

If you have questions about returns, please contact us or visit our returns page for full details.

Specifications

Brand: Staedtler

Range: Mars micro carbon 250

MPN: 250 05-F

Mega Code: SR250 05-F

Lead Width: 0.5 mm

Degree: F (between HB and H)

Tube Contents: 12 leads

Fits: All mechanical pencils taking 0.5 mm lead

Surfaces: Paper and drawing card

Colour Code: ISO 0.5 mm

Staedtler Australia Unit: Tube of 12 (minimum trade order 12 tubes); one tube supplied

Pack Size: 1

Unit: Tube

EAN: 4007817213612 (Staedtler piece EAN)

Primary Distribution Centre

Factory 5, 12 Greenway Drive
Tweed Heads South NSW 2486

ABN 18 634 002 609

Get directionsContact us

FAQs

A single tube containing twelve F grade leads, 0.5 mm thick.
F stands for firm. It sits between HB and H, so it is slightly lighter and harder than HB.
Not in the Mars micro carbon range. Staedtler list F in 0.5 mm only.
Yes, if the pencil takes 0.5 mm leads. Staedtler say the leads suit all mechanical pencils.

Shipping & Delivery

Delivery time depends on your location, the size of your order, and the shipping option selected at checkout. For in-stock items, standard metro delivery in QLD, NSW and VIC is usually 1 to 7 business days. South Australia, Tasmania, Western Australia and the Northern Territory are generally 3 to 12 business days. Express delivery for eligible parcels under 3kg is usually 1 to 4 business days in QLD, NSW, ACT and VIC. Delivery estimates apply to in-stock items only and may vary due to carrier conditions or delays.

If you need to make a change to your order, please contact our team as soon as possible. Once an order has been processed or dispatched, changes may no longer be possible. You can contact us through our Contact Us page for assistance.

Mega Office Supplies ships orders Australia wide and occasionally internationally. The best avenue would be to contact us so we can customise a specific quote for you. Please note that associated international duties, taxes and levies will be the responsibility of the customer.

Returns, Refunds & Replacements

Mega Office Supplies accepts change-of-mind returns for unopened and unused products within 14 days from the invoice date, provided the item is returned in its original packaging and in resalable condition. Original shipping costs are not refundable, return shipping is the customer’s responsibility, and a restocking fee may apply depending on the product type and supplier. Some items, including electronics, assembled or installed furniture, food, beverages, medicines, custom-made products, and certain bulk or special-order items, are not eligible for return unless required under Australian Consumer Law.

If your order arrives faulty, damaged, or incorrect, please contact Mega Office Supplies as soon as possible. Where required under Australian Consumer Law, a repair, replacement, or refund will be offered. In these cases, Mega Office Supplies will cover reasonable return shipping costs, and photographic evidence may be requested to help process the claim. Items should be reported within a reasonable timeframe after delivery.