Maun · SKU 1700-800

Maun Steel Straight Edge Metric 800 mm (1700-800)

More reach. Still easy to handle.

The Maun Steel Straight Edge Metric 800 mm (1700-800) 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 mid-length guide for medium sheet metal, longer gaskets, bag panels and straps.

£58.00inc. VAT · £48.33 ex VATIn stock

Length

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800 mm length for wider bench work, with fewer resets.
Accurate to 0.001 inch per foot (0.084 mm per metre): within 0.067 mm over the full 800 mm.
Bevelled working edge gives a clear line of sight on medium sheet, longer gaskets and bag panels.
Robust 3.25 mm carbon-steel body: reassuringly heavy, yet easy to handle at 800 mm.

Best suited to

Medium sheet
Longer gaskets
Bag panels

UK-madeMade by Maun

12 months’ warrantyOr 2 years when you register it

Stated accuracy0.084 mm per metre

Product description

The 800 mm model bridges the gap between compact bench tools and full-metre straight edges. It’s a strong choice for sheet-metal layout, longer gaskets, leather panels and craft work: anywhere one continuous line beats two joined passes.

Why the Maun Steel Straight Edge Metric 800 mm (1700-800) works

Accurate work. Less rework.

0.067 mmover the full 800 mm

Over 800 mm, the bevelled working edge stays within 0.067 mm of true.
It covers medium sheet and longer gaskets in one pass, to a tolerance you can rely on.

See the line clearly.

800 mmof bevelled working edge

The bevel keeps 800 mm of line in clear view: long enough to replace two joined passes with one continuous mark or cut.

Built for repeated use.

3.25 mmcarbon-steel body

The robust 3.25 mm body gives the 800 mm real weight on the work, while staying easy to lift, position and hang up after the job.

Best suited to

Manufacturing & Engineering

Choose the Maun Steel Straight Edge Metric 800 mm (1700-800) for medium sheet metal, longer gaskets, cover plates and assemblies that need more reach than a 500 mm bench tool.

Covering the line in one pass means fewer stepped marks.
The rigid steel body, precision bevel and accuracy of 0.001 inch per foot (0.084 mm per metre) give you a stable, visible reference for scribing, positioning and practical alignment checks.

Leatherwork

The Maun Steel Straight Edge Metric 800 mm (1700-800) suits bag panels, gussets, medium straps and hide edges that can be cut continuously at this length.

Its weight holds the leather in position, the bevel keeps the knife line visible, and the carbon-steel edge resists wear from repeated cutting.

Specifications

SKU	1700-800
Length	800 mm (31.5 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 0.067 mm over the full 800 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	choose 500 mm for compact work or 1000 mm for full-metre coverage.

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 an 800 mm steel straight edge used for?

An 800 mm steel straight edge covers medium sheet metal, longer gaskets, cover plates and assemblies in one pass. In leatherwork, it suits bag panels, gussets, medium straps and hide edges.

Should I choose the 800 mm or the 1000 mm?

Choose the 800 mm if your work sits on a standard bench and rarely runs past 800 mm: it’s easier to handle and store. Choose the 1000 mm if you regularly work with metre-wide sheet or longer leather cuts.

Is an 800 mm straight edge the same as a 30-inch?

Close, but not quite. 30 inches is 762 mm, so the 800 mm metric version is 38 mm longer. Both share the same carbon-steel body and bevelled working edge, accurate to 0.001 inch per foot (0.084 mm per metre).

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 800 mm long enough?

It’s long enough for the long side of an A2 sheet (594 mm) in one pass.
It’s too short for the long side of an A1 sheet (841 mm). For that, choose the Maun Steel Straight Edge Imperial 36″ (1701-036).
One size down is the Maun Steel Straight Edge Imperial 30″ (1701-030).
One size up is the Maun Steel Straight Edge Imperial 36″ (1701-036).

Steel or aluminium: which suits your job?

This straight edge