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Rulers & Squares  |  JessEm  |  SKU: JES07408

JessEm Stainless Steel Precision Square 300mm

£129.95
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Pre-order now — contact us for current lead time

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4.9/5 based on 6234

JessEm Stainless Steel Precision Square 300mm is backordered and will ship as soon as it is back in stock.

Description

Add grip to your measuring tools with JessEm's Precision Squares featuring patented Flex Grip technology. These squares are crafted from 301 Full Hard Stainless Steel for durability. Each marking is etched and then engraved using a laser system to withstand daily wear and tear, ensuring they never fade.

JessEm's rigorous quality control guarantees one of the most accurate measuring products on the market.

A new feature never before seen on a Square is JessEm's patented Flex Tabs which grip virtually any surface softer than steel. This means no more slipping when marking or scribing your workpiece, metal, paper, etc.

Scribing notches, spaced every 1mm, ensure perfectly accurate lines across your project. Each square features a balancing tab that easily engages, locks into place, and allows you to balance and scribe across your workpiece with ease. Unlock it when not needed.

These squares are perfect for woodworking, drafting, metalworking, art, design, and more. With a range of sizes, you'll always have the perfect ruler for every project.

Specification

  • Scale Tolerance: 0.10mm (0.004") over the length of the blade
  • Square Tolerance: 0.05mm (0.002") over the length of the blade

Available Sizes

  • 150mm
  • 200mm
  • 300mm

Delivery & Returns

Same-Day Dispatch

Orders placed before 2pm (Monday–Friday) are usually dispatched the same day. All deliveries are fully trackable.

UK Mainland Delivery Options

Service Delivery Time / Notes Price
FREE UK Delivery 2–3 days – orders over £90 FREE
Economy Delivery 2–3 days £4.50
Standard Delivery 1–2 days £5.95
Express Next Day Next working day (order before 2pm, Mon–Thu) £7.99
Express Pre-1pm Next working day before 1pm (order before 2pm, Mon–Thu) £15.95
Saturday Delivery Saturday (order before 2pm, Fri) £19.95
Click & Collect Collection available: 9am–4:30pm, Mon–Fri FREE

Important information

  • Express Pre-1pm and Saturday services aren’t available to Northern Ireland, Scottish Highlands, Islands or remote postcodes — Express Next Day takes 2 days and other services may be slower.
  • Large or heavy items may not qualify for Express Pre-1pm or Saturday delivery to your area — we’ll contact you if this applies.
  • Click & Collect – Collection available after you receive “Ready for Pickup” email — most orders before 2pm are same day.

International Delivery

We ship worldwide to over 200 countries. No hidden costs — all duties and taxes are calculated at checkout.

Harvey Machines & SawStop Delivery

Harvey Machines and SawStop products are shipped directly. Once your order has been placed, delivery confirmation and tracking details will be provided by the manufacturer.

View delivery information

Hassle-free Returns

All orders are covered by our 45-day Hassle-free Returns guarantee.

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More Tools in This Range

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We are Wood Workers Workshop

We are a family business, run by woodworkers for woodworkers, delivering 5-star customer service since 1999.

Stocking a wide range of woodworking tools from leading brands: AUKTools, Milescraft, INCRA, iGaging, JessEm, Woodpeckers, FastCap, Verum & more.

Find out more
  • 5 stars: 5 (83%)
  • 4 stars: 1 (17%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
A
Anonymous
Excellent quality square

Excellent quality square.

J
Juraj Andris
Nice tool with some issues

I like the material, love the innovation with gripping scale. However reading the stellar reviews I was very surprised that it was not square due to fact that the balancing tab aasembly was incorrectly positioned protruding the surface. Ok, it is adjustable, no big deal I said to myself only to find out that screws holding the assembly were not metric :) on a metric scale square.

A
Anonymous
Excellent product

Excellent product. Very impressed withJessem tools.

p
phil berry
a beautifully engineered bit of kit

a beautifully engineered bit of kit, dead on square, checked with the 2 line method and against my bang on engineers squares. I love the grippy tabs that lock the square to the work piece when drawing lines and the markings for individual mmpencil slots are clear and easy enough to find even with my bad eyes unlike the returned benchdogs ultra combi which is just an over complicated dogs dinner of a mess with so much unnecessary information you cant see the wood for the trees. 11 out of 10 JessEm

A
Anonymous
Excellent squares

Excellent squares, deserving a 4.9 star rating. Like the rules I bought at the same time, the mount is slightly frustrating, despite the magnetic mount being excellent.

I bought the 200mm and 150mm squares at the same time, each in its own mount. My issue is that my space is limited so mounting each square side by side takes up too much space.

I resolved the frustration(!) by using the spare space in the 300mm square's MDF mount and routing out space for the other two squares. It's rather tidy.

The squares themselves are lovely to use, and the stabilising tabs move from in to out in a very satisfying fashion. They're dead on accurate, as far as I'm concerned, square with accurate markings.

T
Timothy Francis
Don't do reviews, but...........

Staggeringly good service, the shipment arrived from Canada at the Wood Workers Workshop warehouse on the Tuesday, went out by post on Wednesday and arrived with my brother in West Wales on Friday morning ! He's really pleased with it, excellent quality at a reasonable price, flip-out stabilizing tab very useful.

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