---
product_id: 449945246
title: "Metal Safety Rule - 300mm"
brand: "jakar"
price: "฿1344"
currency: THB
in_stock: true
reviews_count: 5
category: "Jakar"
url: https://www.desertcart.co.th/products/449945246-metal-safety-rule-300mm
store_origin: TH
region: Thailand
---

# 300mm length for precise cutting Raised wavy edge for safe, slip-free cutting Durable stainless steel with engraved markings Metal Safety Rule - 300mm

**Brand:** jakar
**Price:** ฿1344
**Availability:** ✅ In Stock

## Summary

> 📐 Cut with confidence, measure with style—your ultimate safety ruler upgrade!

## Quick Answers

- **What is this?** Metal Safety Rule - 300mm by jakar
- **How much does it cost?** ฿1344 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/449945246-metal-safety-rule-300mm)

## Best For

- jakar enthusiasts

## Why This Product

- Trusted jakar brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Ergonomic Grip:** Contoured shape ensures comfortable hold, reducing hand fatigue during extended use
- • **Dual-Scale Markings:** Metric and imperial scales engraved for lasting accuracy, though metric runs only 2/3 length
- • **Unmatched Durability:** Stainless steel construction resists wear and tear—no fading or chipping numbers
- • **Compact & Lightweight:** 30cm length and just 59g—perfectly portable for on-the-go professionals
- • **Precision Cutting Edge:** Wavy raised design keeps fingers safe and ruler steady during every cut

## Overview

The Jakar Metal Safety Rule is a 300mm stainless steel ruler designed for precision cutting and measuring. Featuring a raised wavy edge for finger protection and slip resistance, it offers dual-scale engraved markings—imperial along one edge and a partial metric scale covering two-thirds of the length. Lightweight and durable, this ruler is ideal for professionals seeking a reliable, long-lasting tool that combines safety with functionality.

## Description

Metal Safety Rule - 300mm

Review: For cutting against it works well, easy to hold while keeping one's fingers out of the way. However disappointingly it fails as a measuring device. I work exclusively in metric and given that the rule is sold as a 300mm rule would have expected it to have a mm scale on both or at least one of the edges. However, one of the edges is in inches, which is fair enough, the other is in mm - sortof. Because bizarrely and for some unknown reason the mm scale only extends over 2/3rds of the length of the rule before changing to inches for the remainder of the edge, which makes it useless for measuring more then 200mm and useless for measuring from both ends without having to flip the rule around. At the very least this rather unconventional (and barely usable for metric users) point should have been noted in the description.
Review: La compre por que la de aluminio que usaba y no tendrá mas de seis meses, se desgastaba y dejaba partículas por la mesa. Yo la utilizo para cortar papel sobre cutrting matt, con cutter y ya estaba haciendo forma de tanto pasar la hoja por su borde. Poco a poco se desgastaba. En cambio esta regla es de metal (diría que de acero inox ) pero no estoy seguro. La cuestión es que lleva la numeración marcada en superficie, nada de números pintados, lo notas al pasar el cutter, vas pasando por los números como rascándolos, pero no afecta al corte que siempre sale recto y sin desgaste de la regla en absoluto. Hace 30 cms. , no es mucho pero suficiente para mi. Además con esa forma ondulada y sobreelevada, la sujetas perfectamente sin peligro de corte. Hai sdo un buen cambio.

## Features

- Jakar Safety Ruler Stainless Steel 12" Metal Ruler Cutting Rule Measure

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B002KLRA82 |
| Manufacturer | Scanlansarts Wholesale |
| Manufacturer reference | JK3025 |
| Product Dimensions | 30 x 30 x 0.1 cm; 58.97 g |

## Product Details

- **Brand:** Jakar
- **Colour:** safety orange" or "safety yellow
- **Graduation range:** 30 Centimeters
- **Material:** Metal, Stainless Steel
- **Style:** Silver

## Images

![Metal Safety Rule - 300mm - Image 1](https://m.media-amazon.com/images/I/41kFST34v1L.jpg)

## Customer Reviews

### ⭐⭐ Review
*by C***L on 11 January 2017*

For cutting against it works well, easy to hold while keeping one's fingers out of the way. However disappointingly it fails as a measuring device. I work exclusively in metric and given that the rule is sold as a 300mm rule would have expected it to have a mm scale on both or at least one of the edges. However, one of the edges is in inches, which is fair enough, the other is in mm - sortof. Because bizarrely and for some unknown reason the mm scale only extends over 2/3rds of the length of the rule before changing to inches for the remainder of the edge, which makes it useless for measuring more then 200mm and useless for measuring from both ends without having to flip the rule around. At the very least this rather unconventional (and barely usable for metric users) point should have been noted in the description.

### ⭐⭐⭐⭐⭐ Review
*by E***Y on 9 September 2017*

La compre por que la de aluminio que usaba y no tendrá mas de seis meses, se desgastaba y dejaba partículas por la mesa. Yo la utilizo para cortar papel sobre cutrting matt, con cutter y ya estaba haciendo forma de tanto pasar la hoja por su borde. Poco a poco se desgastaba. En cambio esta regla es de metal (diría que de acero inox ) pero no estoy seguro. La cuestión es que lleva la numeración marcada en superficie, nada de números pintados, lo notas al pasar el cutter, vas pasando por los números como rascándolos, pero no afecta al corte que siempre sale recto y sin desgaste de la regla en absoluto. Hace 30 cms. , no es mucho pero suficiente para mi. Además con esa forma ondulada y sobreelevada, la sujetas perfectamente sin peligro de corte. Hai sdo un buen cambio.

### ⭐⭐⭐⭐⭐ Review
*by K***S on 26 October 2025*

Good bit of stiff metal this! Nice one our kid. Eeeeeeeeemurrrrrrr!

## Frequently Bought Together

- Metal Safety Rule - 300mm
- ANSIO Craft Cutting Mat Self Healing A3 Double Sided 5 Layers - Quilting, Sewing, Scrapbooking, Fabric & Papercraft - Imperial/Metric 17 Inch x 11 Inch / 42cm x 27cm - Green/Green

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-03-11*