Maun · SKU 1700-125

Maun Steel Straight Edge Metric 1250 mm (1700-125)

Long-range accuracy. No guesswork.

The Maun Steel Straight Edge Metric 1250 mm (1700-125) 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 the size for wide sheets, panels and frames beyond a metre, and for larger hides.

£96.00inc. VAT · £80.00 ex VATIn stock

Length

Shop on Maun Industries

You’ll check out on maunindustries.com, Maun’s own store

1250 mm length covers wider panels, plates and hides with fewer resets.
Accurate to 0.001 inch per foot (0.084 mm per metre): within 0.105 mm over the full 1250 mm.
Bevelled working edge gives a clear line of sight across wide panels, frames and hides.
Robust 3.25 mm carbon-steel body: reassuringly heavy for work beyond a metre.

Best suited to

Wide sheets beyond a metre
Larger hides

UK-madeMade by Maun

12 months’ warrantyOr 2 years when you register it

Stated accuracy0.084 mm per metre

Product description

The 1250 mm model is made for work that goes beyond a metre. It gives fabricators, installers and leatherworkers one true reference across broader material, so there’s no visible step where a shorter tool would have to be moved.

Why the Maun Steel Straight Edge Metric 1250 mm (1700-125) works

Accurate work. Less rework.

0.105 mmover the full 1250 mm

Over 1250 mm, the bevelled working edge stays within about a tenth of a millimetre (0.105 mm) of true.
It takes you past the metre mark without adding a second alignment point.

See the line clearly.

1250 mmof bevelled working edge

The bevel keeps 1250 mm of line in view, so you can work across wide panels and hides without losing your mark at a join.

Built for repeated use.

3.25 mmcarbon-steel body

The robust 3.25 mm body gives the 1250 mm reassuring weight across wide work, keeping it steady while you mark or cut.

Best suited to

Manufacturing & Engineering

Choose the Maun Steel Straight Edge Metric 1250 mm (1700-125) for wide sheets, panels, fabricated assemblies and machine frames that extend beyond a metre.

The extra reach means fewer joined marks and fewer set-ups.
The rigid carbon-steel body and precision bevel give you a dependable, visible reference for laying out components, transferring lines and checking practical alignment.

Leatherwork

The Maun Steel Straight Edge Metric 1250 mm (1700-125) suits larger hides, full-length straps and long leather panels, where moving a metre-long guide could leave a step or a change of angle.

Its weight steadies the work, and the hard-wearing bevel keeps the knife line visible through continuous cuts.

Specifications

SKU	1700-125
Length	1250 mm (49.2 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 0.105 mm over the full 1250 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	1000 mm for a lighter metre-length tool; 1500 mm for wider 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 1250 mm steel straight edge used for?

A 1250 mm steel straight edge is for work that goes past a metre: wide sheets, panels, fabricated assemblies and machine frames, plus larger hides, full-length straps and long leather panels.

Will a 1250 mm straight edge cover the width of a 2500 × 1250 mm sheet?

Yes. It spans the full 1250 mm width of a standard 2500 × 1250 mm sheet. It also covers the 1220 mm width of an 8 × 4 ft sheet, with a little to spare.

How accurate is the 1250 mm over its full length?

The bevelled working edge is accurate to 0.001 inch per foot (0.084 mm per metre): within 0.105 mm over the full 1250 mm. That’s dependable workshop accuracy for layout, transferring lines and practical alignment 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 1250 mm long enough?

It’s long enough for the width of an 8 × 4 ft board (1220 mm) in one pass.
It’s too short for the length of an 8 × 4 ft board (2440 mm). For that, choose the Maun Aluminium Safety Straight Edge 3000 mm (1710-300).
One size down is the Maun Steel Straight Edge Imperial 48″ (1701-048).
One size up is the Maun Steel Straight Edge Imperial 54″ (1701-054).

Steel or aluminium: which suits your job?

This straight edge