Maun · SKU 1700-500

Maun Steel Straight Edge Metric 500 mm (1700-500)

Compact precision for accurate bench work.

The Maun Steel Straight Edge Metric 500 mm (1700-500) is a carbon-steel straight edge with a precision-ground bevelled working edge, accurate to 0.001 inch per foot (0.084 mm per metre). UK-made, it’s a compact bench tool for small plates, components, gaskets and leather pieces.

£34.00inc. VAT · £28.33 ex VATIn stock

Length

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500 mm length for close control on small components, sheets and leatherwork.
Accurate to 0.001 inch per foot (0.084 mm per metre): within 0.042 mm over the full 500 mm.
Bevelled working edge gives a clear line of sight on compact plates, gaskets and small panels.
Robust 3.25 mm carbon-steel body: reassuringly heavy for a compact bench tool.

Best suited to

Compact plates
Components
Small leather pieces

UK-madeMade by Maun

12 months’ warrantyOr 2 years when you register it

Stated accuracy0.084 mm per metre

Product description

This 500 mm steel straight edge gives engineers, makers and leatherworkers a dependable reference without the bulk of a long shop-floor tool. Use it where an ordinary rule is too flexible or has no published straightness tolerance. The bevel keeps your working line visible, and the surface-ground steel body stays rigid when using a scriber or knife.

Why the Maun Steel Straight Edge Metric 500 mm (1700-500) works

Accurate work. Less rework.

0.042 mmover the full 500 mm

Over its full 500 mm, the bevelled working edge stays within 0.042 mm of true.
That’s a known reference for compact plates, components and covers: ideal where an ordinary rule offers no stated straightness.

See the line clearly.

500 mmof bevelled working edge

On compact bench work, the bevel puts your mark or cut right under your eye.
You stay on the line and avoid parallax on short, precise marks.

Built for repeated use.

3.25 mmcarbon-steel body

The robust 3.25 mm body makes this compact tool reassuringly heavy.
It holds small workpieces still while you scribe, mark or cut.

Best suited to

Manufacturing & Engineering

Choose the Maun Steel Straight Edge Metric 500 mm (1700-500) for compact plates, components, gaskets and covers that are best handled on the bench.

Its short metric length is easy to position.
The rigid 3.25 mm carbon-steel body gives you a firm base, the bevel keeps reference lines visible, and the published accuracy of 0.001 inch per foot (0.084 mm per metre) supports exact layout and practical checks on smaller fabricated parts.

Leatherwork

The Maun Steel Straight Edge Metric 500 mm (1700-500) is ideal for wallet pieces, tabs, short straps, small panels and scored fold lines, where close control matters more than long reach.

Its weight steadies the leather, and the durable bevel gives you a clear knife guide that takes repeated contact far better than softer rules.

Specifications

SKU	1700-500
Length	500 mm (19.7 in)
Body	surface-ground carbon steel, 53 mm wide and 3.25 mm thick
Working edge	precision-ground and bevelled
Accuracy	0.001 inch per foot (0.084 mm per metre)
Straightness over its length	within 0.042 mm over the full 500 mm
Storage	6 mm hanging hole; supplied in a wallet with anti-rust paper
Made	UK-made, under our ISO 9001 quality system
Warranty	Standard 12 months’ warranty. Register your tool to extend this to 2 years.
Alternatives	Need more reach? Consider the 800 mm or 1000 mm metric versions.

The working edge

The bevel runs along the whole of one long edge. You run your scriber or knife against it, so you can see the line as you go.

Frequently Asked Questions

What is a 500 mm steel straight edge used for?

A 500 mm steel straight edge is a compact bench tool for marking out small plates, components, gaskets and covers, and for leatherwork such as wallet pieces, tabs, short straps and fold lines. Its short length is easy to position where space is tight.

How accurate is the 500 mm Maun steel straight edge?

The bevelled working edge is accurate to 0.001 inch per foot (0.084 mm per metre), so over 500 mm it stays within 0.042 mm of true. That’s practical workshop accuracy for exact marking and straightness checks, not a DIN 874 metrology grade.

Is there an Imperial equivalent to the 500 mm?

The nearest Imperial sizes are the 18″ (457 mm) and the 24″ (610 mm), and the 500 mm sits between them. All three share the same 53 × 3.25 mm carbon-steel body and bevelled working edge.

Last updated 11 November 2026

Content reviewed by Rebekah Jackson, Digital Marketing Executive at Maun Industries Limited, formerly on Maun’s production team, on 21 October 2026. We last checked prices and stock against maunindustries.com on 11 November 2026.

Size check: is 500 mm long enough?

It’s long enough for the long side of an A3 sheet (420 mm) in one pass.
It’s too short for the long side of an A2 sheet (594 mm). For that, choose the Maun Steel Straight Edge Imperial 24″ (1701-024).
One size down is the Maun Steel Straight Edge Imperial 18″ (1701-018).
One size up is the Maun Steel Straight Edge Imperial 24″ (1701-024).

Steel or aluminium: which suits your job?

This straight edge