Upright Staedtler Mars micro carbon tube in the new design, brown band reading 0.5 mm, grade 3H and 12x below the OPEN cap
Shading strip from Staedtler for 0.5 mm Mars micro carbon grades 2B, B, HB, F, H, 2H and 3H
Earlier style Mars micro carbon tube lying horizontally, end panel marked 0.5 mm 3H
Approx. 0.5 mm line width pictogram in Staedtler navy on white
ISO lead width colour code pictogram: yellow 0.3, red 0.5, white 0.7 and orange 0.9 mm
Upright Staedtler Mars micro carbon tube in the new design, brown band reading 0.5 mm, grade 3H and 12x below the OPEN cap
Shading strip from Staedtler for 0.5 mm Mars micro carbon grades 2B, B, HB, F, H, 2H and 3H
Earlier style Mars micro carbon tube lying horizontally, end panel marked 0.5 mm 3H
Approx. 0.5 mm line width pictogram in Staedtler navy on white
ISO lead width colour code pictogram: yellow 0.3, red 0.5, white 0.7 and orange 0.9 mm
Upright Staedtler Mars micro carbon tube in the new design, brown band reading 0.5 mm, grade 3H and 12x below the OPEN cap
Shading strip from Staedtler for 0.5 mm Mars micro carbon grades 2B, B, HB, F, H, 2H and 3H
Earlier style Mars micro carbon tube lying horizontally, end panel marked 0.5 mm 3H
Approx. 0.5 mm line width pictogram in Staedtler navy on white
ISO lead width colour code pictogram: yellow 0.3, red 0.5, white 0.7 and orange 0.9 mm
Staedtler

Staedtler Mars Micro Carbon Lead 0.5mm 3H 250 05-3H

$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 05-3H

UPC: 4007817213704

MPN: 250 05-3H

3H: The Hardest 0.5 mm Mars Micro Carbon Grade

Staedtler 250 05-3H is a single tube of twelve 0.5 mm Mars micro carbon leads in the very hard 3H grade.

3H is the hardest grade Staedtler offer in the 0.5 mm Mars micro carbon range. The line is light grey and very fine, so it is chosen for faint construction lines, layouts that will be inked, dressmaking patterns and marking on smooth card where a soft lead would smear.

Staedtler say the lead glides smoothly, is extremely break resistant and erases easily, and that it suits every mechanical pencil of the matching size on paper or drawing card. The tube is printed with the 0.5 mm ISO colour code so the width is easy to pick out in a drawer.

Writing with 3H can look faint on photocopies and scans, so keep it for drawing and switch to HB or B for notes.

Also see our mechanical pencil leads, drawing supplies, pencil lead refills and Staedtler.

Often ordered together

  • Tube holding 12 leads of 0.5 mm 3H
  • Hardest grade in the 0.5 mm range
  • Fine, faint line for construction work
  • Smooth gliding, per Staedtler
  • Easy to erase
  • Suits all 0.5 mm mechanical pencils
  • Faint construction and layout lines
  • Drawings that will be inked
  • Dressmaking and craft patterns
  • Marking smooth card
  • Mars micro 775 05 and graphite 778 05-9 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 05-3H

Mega Code: SR250 05-3H

Width: 0.5 mm

Grade: 3H (hardest 0.5 mm grade)

Quantity: 12 leads in one tube

Compatibility: Any mechanical pencil taking 0.5 mm lead

For Use On: Paper and drawing card

ISO Colour Coding: 0.5 mm

Staedtler Australia Unit: Tube of 12; resellers order 12 tubes; we sell single tubes

Pack Size: 1

Unit: Tube

EAN: 4007817213704 (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

Twelve 3H leads, all 0.5 mm wide.
Very light. It is the hardest 0.5 mm grade Staedtler make, so lines are pale grey and stay thin.
Not usually. Its line is faint for writing and for answer sheets. HB or 2B is the common choice there.
Yes. Staedtler describe the lead as easy to erase, and hard grades leave little graphite on the page.

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.