---
product_id: 170458220
title: "JohnsonLevel & Tool 420EM Professional Inch/Metric Combination Square, 16\", Silver, 1 Square"
brand: "johnson"
price: "S$71"
currency: SGD
in_stock: true
reviews_count: 5
url: https://www.desertcart.sg/products/170458220-johnsonlevel-and-tool-420em-professional-inch-metric-combination-square-16
store_origin: SG
region: Singapore
---

# 12" precision CNC machined head Stainless steel blade JohnsonLevel & Tool 420EM Professional Inch/Metric Combination Square, 16", Silver, 1 Square

**Brand:** johnson
**Price:** S$71
**Availability:** ✅ In Stock

## Summary

> 🔧 Measure Up to Perfection!

## Quick Answers

- **What is this?** JohnsonLevel & Tool 420EM Professional Inch/Metric Combination Square, 16", Silver, 1 Square by johnson
- **How much does it cost?** S$71 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/170458220-johnsonlevel-and-tool-420em-professional-inch-metric-combination-square-16)

## Best For

- johnson enthusiasts

## Why This Product

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

## Key Features

- • **Durable Design:** Heavy-duty cast zinc head with chip-resistant finish.
- • **Precision Engineering:** CNC machined for unmatched accuracy.
- • **Lightweight & Portable:** Weighs only 4.8 ounces for easy handling.
- • **Versatile Applications:** Functions as a square, straightedge, and more.
- • **Fade-Resistant Markings:** Permanent graduations in both inch and metric.

## Overview

The JohnsonLevel & Tool 400EM-S is a heavy-duty 12" metal combination square designed for precision and durability. Featuring a CNC machined head, stainless steel blade with permanent graduations, and a robust cast zinc head, this tool is perfect for professionals seeking accuracy in various applications. Lightweight and portable, it's built to withstand the rigors of any job site.

## Description

JohnsonLevel & Tool 420EM Professional Inch/Metric Combination Square, 16", Silver, 1 Square

## Features

- COMBO SQUARE: The square head of this Johnson metal square ruler is CNC machined for enhanced precision. Its Auto-Lock blade assembly makes it easy to accurately align tools for usage. It gives the accuracy and precision needed for every job.
- STAINLESS BLADE: This combination square tool has a stainless steel blade with English and metric graduations of 1/8"; 1/16"; and 1/32"; as well as metric graduations that are permanently imprinted; so they will never fade or degrade.
- CAST ZINC HEAD: The durable acrylic vial; heavy-duty cast zinc head with a chip-resistant e-coating finish; and reinforced screw-in scriber that won't fall out make this square withstand even the worst construction site usage.
- APPLICATIONS: The CNC-machined head of the measuring tool acts as a stop; ensuring layout lines are always square to the edges. This makes it an ideal machinist's square; straightedge; adjustable try square; miter square; marking gauge; and depth gauge.
- PRODUCT SPECIFICATIONS: This 12’’ combination square measures ‎0.75 × 5.5 × 12 inches and weighs 4.8 ounces (0.18 kg). This Johnson Level tool is designed and manufactured with precision in the United States.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Johnson Level & Tool |
| Part Number | 400EM-S |
| Product Dimensions | 1.91 x 13.97 x 30.48 cm; 136.08 g |
| Item model number | 400EM-S |
| Size | Metal Combination Square |
| Colour | Black |
| Style | Metal Combination Square |
| Material | Alloy Steel |
| Item Package Quantity | 1 |
| Measurement System | Inch |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 136 g |

## Product Details

- **Material:** Stainless Steel, Zinc
- **Brand:** Johnson
- **Color:** Black
- **Style:** 420EM Inch/Metric Metal
- **Graduation Range:** 1/32 Inches

## Images

![JohnsonLevel & Tool 420EM Professional Inch/Metric Combination Square, 16", Silver, 1 Square - Image 1](https://m.media-amazon.com/images/I/41me4zyp2uL.jpg)
![JohnsonLevel & Tool 420EM Professional Inch/Metric Combination Square, 16", Silver, 1 Square - Image 2](https://m.media-amazon.com/images/I/41me4zyp2uL.jpg)
![JohnsonLevel & Tool 420EM Professional Inch/Metric Combination Square, 16", Silver, 1 Square - Image 3](https://m.media-amazon.com/images/I/41me4zyp2uL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
  
    Awesome
  

*by E***S on Reviewed in Canada on 29 July 2024*

Rely good level and square!!top quality!

### ⭐ 







  
  
    Flimsy and practically useless
  

*by E***T on Reviewed in Sweden on 22 April 2024*

Hard to read scale on a thin, flimsy and toyish steel rule. Do not buy.

### ⭐⭐⭐⭐⭐ 







  
    Muy bueno
  
  

*by J***S on Reviewed in Mexico on 12 July 2020*

Excelente producto. Resistente

## Frequently Bought Together

- Johnson Level & Tool 400EM-S Heavy Duty Professional Inch/Metric Metal Combination Square, 12", Silver, 1 Square
- Johnson Level & Tool 406EM Professional Inch/Metric Combination Square, 6", Silver, 1 Square
- IRWIN Tools Combination Square, Metal-Body, 6-Inch (1794468), Blue

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**Shop now:** [https://www.desertcart.sg/products/170458220-johnsonlevel-and-tool-420em-professional-inch-metric-combination-square-16](https://www.desertcart.sg/products/170458220-johnsonlevel-and-tool-420em-professional-inch-metric-combination-square-16)

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-01-31*