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Precision Straight Edge Tools & Rulers

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There are straight rules. Then there are Maun rules.

More than just a guide for measuring, scoring and cutting. Our precision straight edge tools are expertly engineered. For you to complete job after job in safety. Ensuring perfection, every time.

Perfect accuracy is the baseline for our products. So as well as clean lines and precision measurements, our engineering straight edges and safety rules come with a host of other features.

The Aluminium Safety Straight Edge has a non-slip, vision-enhancing, finger-protecting design. Ideal for scoring and cutting everything from papercraft to wallpaper, vinyl flooring and even sheet glass. Available in metric sizes from 300 mm to 3 m.

The Steel Straight Edge is an all-purpose model. In Imperial sizes from 12″ to 72″, with metric options from 300 mm to 1 m. Crafted from high-quality carbon steel and case hardened to HRC 57 for durability. It’s built to ensure a flawless finish in all kinds of professional, DIY, woodworking and craft applications. They are ideal for setting up machines like planers and jointers too.

Our precision steel straight edges offer precise measurement along the entire length for maximum accuracy and that perfect straight edge every time. They also include hang holes for storage on a hook or nail, with a range of lengths to choose from. The weight of a steel straight edge is reassuring, and makes it much more forgiving than a lightweight ruler.

The Safety Ruler, meanwhile, is a classic design that has endured for 60 years. Simple and safe. The straighe edge ruler is perfect for the classroom and the workplace.

So, if you’re looking for innovative design. Lightweight, easy-to-handle build. And of course, a product that’s made to last by skilled British craftsmen, choose Maun today. And don’t settle for ordinary.

You can also read our guides: How to Use a Straight Edge | What is a Straight Edge

Can't see what you are looking for? Check out our full range of Pliers & Tools.

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Show 12 24
  • Maun Steel Straight Edge Imperial 18″ zoomed in on hanging hole
    Quick view

    SKU: 1701-018

    Steel Straight Edge Imperial 18″

    Accurate: To < 0.1 mm per m
    Beautiful: Surface ground steel
    9 Imperial sizes: 12″ to 72″
    £27.00 inc. VAT
    £22.50 ex. VAT
  • Maun Steel Straight Edge Imperial 24″ zoomed in on hanging hole
    Quick view

    SKU: 1701-024

    Steel Straight Edge Imperial 24″

    Accurate: To < 0.1 mm per m
    Beautiful: Surface ground steel
    9 Imperial sizes: 12″ to 72″
    £39.00 inc. VAT
    £32.50 ex. VAT
  • Maun Steel Straight Edge Imperial 12″ zoomed in on hanging hole
    Quick view

    SKU: 1701-012

    Steel Straight Edge Imperial 12″

    Accurate: To < 0.1 mm per m
    Beautiful: Surface ground steel
    9 Imperial sizes: 12″ to 72″
    £21.00 inc. VAT
    £17.50 ex. VAT
  • Maun Steel Straight Edge Metric 500 mm zoomed in with fingers holding it to a surface
    Quick view

    SKU: 1700-500

    Steel Straight Edge Metric 500 mm

    Accurate: To < 0.1 mm per m
    Beautiful: Surface ground steel
    3 metric sizes: 500 to 1000 mm
    £32.00 inc. VAT
    £26.67 ex. VAT
  • Maun Steel Straight Edge Imperial 72″ zoomed in on hanging hole
    Quick view

    SKU: 1701-072

    Steel Straight Edge Imperial 72″

    Accurate: To < 0.1 mm per m
    Beautiful: Surface ground steel
    9 Imperial sizes: 12″ to 72″
    £126.00 inc. VAT
    £105.00 ex. VAT
  • Maun Steel Straight Edge Imperial 48″ zoomed in on the hanging hole
    Quick view

    SKU: 1701-048

    Steel Straight Edge Imperial 48″

    Accurate: To < 0.1 mm per m
    Beautiful: Surface ground steel
    9 Imperial sizes: 12″ to 72″
    £71.00 inc. VAT
    £59.17 ex. VAT
  • Maun Steel Straight Edge Imperial 60″ zoomed in on the hanging hole
    Quick view

    SKU: 1701-060

    Steel Straight Edge Imperial 60″

    Accurate: To < 0.1 mm per m
    Beautiful: Surface ground steel
    9 Imperial sizes: 12″ to 72″
    £105.00 inc. VAT
    £87.50 ex. VAT
  • Maun Steel Straight Edge Imperial 36" zoomed in on hanging hole
    Quick view

    SKU: 1701-036

    Steel Straight Edge Imperial 36″

    Accurate: To < 0.1 mm per m
    Beautiful: Surface ground steel
    9 Imperial sizes: 12″ to 72″
    £60.00 inc. VAT
    £50.00 ex. VAT
  • Maun Metal Safety Rule 300 mm close up of end section, showing the M profile
    Quick view

    SKU: 1774-300

    Metal Safety Rule 300 mm

    Protect fingers: M profile
    Made to last: Stainless steel
    Scale: Metric
    £6.00 inc. VAT
    £5.00 ex. VAT
  • Maun Metal Safety Rule 12″ being used to create a straight line on card
    Quick view

    SKU: 1773-012

    Metal Safety Rule 12″

    Protect fingers: M profile
    Made to last: Stainless steel
    Scale: Mixed imperial / metric
    £6.00 inc. VAT
    £5.00 ex. VAT
  • Maun Steel Straight Edge Imperial 30″ zoomed in on hanging hole
    Quick view

    SKU: 1701-030

    Steel Straight Edge Imperial 30″

    Accurate: To < 0.1 mm per m
    Beautiful: Surface ground steel
    9 Imperial sizes: 12″ to 72″
    £50.00 inc. VAT
    £41.67 ex. VAT