Maun · SKU 1701-030

Maun Steel Straight Edge Imperial 30″ (1701-030)

Extra coverage, without going to a full yard.

The Maun Steel Straight Edge Imperial 30″ (1701-030) is a 762 mm 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 the in-between size for medium sheets, larger gaskets and longer strap and panel cuts.

£57.00inc. VAT · £47.50 ex VATIn stock

Length

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30″ length gives you more coverage without moving up to a full yard.
Accurate to 0.001 inch per foot (0.084 mm per metre): within 0.0025 in (0.064 mm) over the full 30″.
Bevelled working edge gives a clear line of sight on medium sheets and longer strap cuts.
Robust 3.25 mm carbon-steel body: reassuringly heavy, without the bulk of a yard-long tool.

Best suited to

Medium sheets
Larger gaskets
Longer straps

UK-madeMade by Maun

12 months’ warrantyOr 2 years when you register it

Stated accuracy0.084 mm per metre

Product description

The 30″ straight edge is the practical middle size for work that’s outgrown a 24″ guide. Its rigid, surface-ground body gives you confident scribing and suitable cutting, without the stepped joins that come from moving a shorter tool.

Why the Maun Steel Straight Edge Imperial 30″ (1701-030) works

Accurate work. Less rework.

0.0025 in (0.064 mm)over the full 30″

Over 30″, the bevelled working edge stays within 0.0025 inch (0.064 mm) of true.
It gives you the extra reach that medium sheets and larger gaskets demand, with a known tolerance on every line.

See the line clearly.

30″of bevelled working edge

Six inches more than a 24″ tool means one continuous sight line where you’d otherwise have to stop and reset.
The bevel keeps that line in view all the way.

Built for repeated use.

3.25 mmcarbon-steel body

The robust 3.25 mm body gives the 30″ real presence on the work.
It’s reassuringly heavy, yet still easy to lift, position and store.

Best suited to

Manufacturing & Engineering

Choose the Maun Steel Straight Edge Imperial 30″ (1701-030) for medium sheets, larger gaskets, cover plates and fabrication layouts that have outgrown a 24-inch guide but don’t need a full yard.

The extra reach means less repositioning.
The substantial carbon-steel body, visible bevel and published 0.001-inch-per-foot accuracy work together for exact scribing, reliable alignment and useful straightness checks.

Leatherwork

The Maun Steel Straight Edge Imperial 30″ (1701-030) is well matched to medium bag panels, gussets and longer belt or strap work.

You get more uninterrupted cutting length than a two-foot edge, without the bulk.
Useful weight, a clear sight line and a wear-resistant steel edge add up to straighter, more controlled knife cuts.

Specifications

SKU	1701-030
Length	30″ (762 mm)
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 0.0025 in (0.064 mm) over the full 30″
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	24″ for easier handling; 36″ for yard-wide work.

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 30-inch steel straight edge used for?

A 30-inch (762 mm) steel straight edge suits medium sheets, larger gaskets, cover plates and fabrication layouts that are too long for a 24″ tool. Leatherworkers use it for medium bag panels, gussets and longer belt and strap work.

Why choose a 30″ instead of a 24″ or 36″?

Choose the 30″ when your work regularly runs past two feet but rarely needs a full yard. You get one continuous line where a 24″ would need resetting, without the extra length and storage space of a 36″.

How accurate is the 30-inch Maun straight edge over its full length?

The bevelled working edge is accurate to 0.001 inch per foot (0.084 mm per metre): within 0.0025 inch (0.064 mm) over the full 30 inches. That gives you a known reference for exact marking and practical straightness checks.

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 30″ 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 24″ (1701-024).
One size up is the Maun Steel Straight Edge Metric 800 mm (1700-800).

Steel or aluminium: which suits your job?

This straight edge