Staedtler Mars comfort 551 02 set in its clear hinged case on a navy COMFORT card, silver masterbow compass with a bent extension bar and blue spares box
Mars comfort 551 compass from the 551 02 set standing upright, legs closed, showing the ring top, spindle and centre wheel
Mars comfort 551 compass with the universal adapter fitted, holding a black Staedtler fineliner as the drawing leg
Mars comfort 551 compass with the extension bar fitted, the long bar running out sideways with the lead holder at its far end
Close-up of the 551 compass tips, showing the shouldered needle in the hinged needle shoe and the lead leg
Four Staedtler pictograms in blue: centre wheel, hinged leg and needle shoe on a wide arc, universal adapter, and extension bar on the needle leg
Staedtler Mars comfort 551 02 set in its clear hinged case on a navy COMFORT card, silver masterbow compass with a bent extension bar and blue spares box
Mars comfort 551 compass from the 551 02 set standing upright, legs closed, showing the ring top, spindle and centre wheel
Mars comfort 551 compass with the universal adapter fitted, holding a black Staedtler fineliner as the drawing leg
Mars comfort 551 compass with the extension bar fitted, the long bar running out sideways with the lead holder at its far end
Close-up of the 551 compass tips, showing the shouldered needle in the hinged needle shoe and the lead leg
Four Staedtler pictograms in blue: centre wheel, hinged leg and needle shoe on a wide arc, universal adapter, and extension bar on the needle leg
Staedtler Mars comfort 551 02 set in its clear hinged case on a navy COMFORT card, silver masterbow compass with a bent extension bar and blue spares box
Mars comfort 551 compass from the 551 02 set standing upright, legs closed, showing the ring top, spindle and centre wheel
Mars comfort 551 compass with the universal adapter fitted, holding a black Staedtler fineliner as the drawing leg
Mars comfort 551 compass with the extension bar fitted, the long bar running out sideways with the lead holder at its far end
Close-up of the 551 compass tips, showing the shouldered needle in the hinged needle shoe and the lead leg
Four Staedtler pictograms in blue: centre wheel, hinged leg and needle shoe on a wide arc, universal adapter, and extension bar on the needle leg
Staedtler

Staedtler Mars Comfort Precision Masterbow Compass with Extension Bar 551 02

$67.88
$67.88
RRP $72.82
Or 4 payments of $16.97 with
Add items to a quote for bulk pricing, approvals, or purchase orders.

SKU: SR551 02

UPC: 4007817551028

MPN: 551 02

Centre Wheel Precision With Extra Reach

Staedtler Mars comfort 551 02 is the 551 precision masterbow compass packed with an extension bar, taking its maximum circle from about 280mm to about 500mm.

Large circles are where a compass most often lets you down, because a wide setting magnifies any slip. This set pairs the long reach of an extension bar, which fits the needle leg exactly, with a centre wheel on a spindle guide that holds the setting fixed. Both figures are given by Staedtler on their Australian site and in their 2024 catalogue.

The compass itself is solid metal, 154mm long, with a spring-bow head, a hinged leg joint and needle shoe, an interchangeable shouldered needle and a lead part with a 4mm shank. In the hinged case you also get a universal adapter, so drafting pens and fineliners can draw the circle in ink, and a spares box. The catalogue describes the compass as nickel-free.

Typical uses are plan views of round tables and roundabouts, arcs on site plans and large construction geometry.

More geometry compasses, scale rulers and technical drawing tools.

Often ordered together

  • Mars comfort 551 masterbow with extension bar
  • Max circle approx. 280mm, approx. 500mm with bar
  • Centre wheel on a spindle guide holds the radius
  • Solid metal, 154mm long
  • Hinged leg joint, needle shoe and shouldered needle
  • Universal adapter and spares box in a hinged case
  • Large radius arcs on site and floor plans
  • Architecture and civil engineering drawing
  • Big construction geometry on A2 or A3 sheets
  • Inked circles with drafting pens
  • University and TAFE drafting kits

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 comfort 551 precision compass

MPN: 551 02

Mega Code: SR551 02

Construction: Solid metal

Mechanism: Spindle guide, spring-bow head, centre wheel

Max Circle: Approx. 280mm, approx. 500mm with extension bar

Length: 154mm

Needle: Interchangeable, shouldered

Lead Part: Interchangeable, 4mm shank

Contents: Compass, extension bar, universal adapter, spares box, case with hinged lid

Nickel-Free: Yes, per Staedtler catalogue

Staedtler Australia Unit: 1 piece, minimum order 1 piece

Pack Size: 1 compass set

Unit: Each

EAN: 4007817551028

Primary Distribution Centre

Factory 5, 12 Greenway Drive
Tweed Heads South NSW 2486

ABN 18 634 002 609

Get directionsContact us

FAQs

Staedtler quote about 280mm across without it and about 500mm with the extension bar fitted.
It fits the needle leg, according to Staedtler, and the lead or adapter then sits at the far end of the bar.
The compass is the same. The 551 02 adds the extension bar to the case contents.
No, the 551 uses a centre wheel. The quick-setting Staedtler model is the 552.

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.