---
product_id: 369344472
title: "Johnson Level & Tool 420EM Professional Inch/Metric Combination Square, 16\", Silver, 1 Square"
brand: "johnson"
price: "126.40 DT"
currency: TND
in_stock: true
category: "Johnson"
url: https://www.desertcart.tn/products/369344472-johnson-level-and-tool-420em-professional-inch-metric-combination-square
store_origin: TN
region: Tunisia
---

# CNC-machined precision Auto-Lock blade assembly Chip-resistant zinc head Johnson Level & Tool 420EM Professional Inch/Metric Combination Square, 16", Silver, 1 Square

**Brand:** johnson
**Price:** 126.40 DT
**Availability:** ✅ In Stock

## Summary

> 📐 Elevate your craft with precision that commands respect.

## Quick Answers

- **What is this?** Johnson Level & Tool 420EM Professional Inch/Metric Combination Square, 16", Silver, 1 Square by johnson
- **How much does it cost?** 126.40 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/369344472-johnson-level-and-tool-420em-professional-inch-metric-combination-square)

## 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

- • **Multi-Tool Marvel:** Functions as a machinist’s square, try square, miter square, marking gauge, and depth gauge — your all-in-one precision partner.
- • **Dual-Scale Mastery:** Permanent English & metric graduations in 1/8", 1/16", 1/32" for versatile, fade-proof readability.
- • **Precision Perfected:** CNC-machined square head ensures flawless 90° angles every time.
- • **Lock & Load Accuracy:** Auto-Lock blade assembly guarantees stable, exact measurements without slip.
- • **Built to Brave the Jobsite:** Heavy-duty cast zinc head with chip-resistant e-coating and reinforced scriber for unmatched durability.

## Overview

The Johnson Level & Tool 420EM is a 12-inch professional-grade combination square featuring a CNC-machined stainless steel blade with permanent dual graduations, an Auto-Lock blade assembly for secure measurements, and a rugged cast zinc head with chip-resistant finish. Designed in the USA, it delivers reliable accuracy and durability for demanding construction and machining tasks.

## Description

Buy Johnson Level & Tool 420EM Professional Inch/Metric Combination Square, 16", Silver, 1 Square online on desertcart.ae at best prices. ✓ Fast and free shipping ✓ free returns ✓ cash on delivery available on eligible purchase.

## 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 |
|---------------|-------|
| ASIN | B00002N5O9 |
| ASIN  | B00002N5O9 |
| Batteries Included? | No |
| Batteries Required? | No |
| Color | Black |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,918) |
| Customer reviews | 4.4 4.4 out of 5 stars (1,918) |
| Date First Available | 15 September 2023 |
| Date First Available  | 15 September 2023 |
| Is Discontinued By Manufacturer  | Yes |
| Item Package Quantity | 1 |
| Item Weight | 136 g |
| Item model number | 400EM-S |
| Item model number  | 400EM-S |
| Manufacturer | Johnson Level & Tool |
| Manufacturer  | Johnson Level & Tool |
| Material | Alloy Steel |
| Measurement System | Inch |
| Part number | 400EM-S |
| Product Dimensions | 1.91 x 13.97 x 30.48 cm; 136.08 g |
| Product Dimensions  | 1.91 x 13.97 x 30.48 cm; 136.08 g |
| Size | Metal Combination Square |
| Style | Metal Combination Square |

## Product Details

- **Brand:** Johnson
- **Colour:** Black
- **Graduation range:** 1/32 Inches
- **Material:** Alloy Steel
- **Style:** Metal Combination Square

## Images

![Johnson Level & Tool 420EM Professional Inch/Metric Combination Square, 16", Silver, 1 Square - Image 1](https://m.media-amazon.com/images/I/21jcpu0oRkL.jpg)
![Johnson Level & Tool 420EM Professional Inch/Metric Combination Square, 16", Silver, 1 Square - Image 2](https://m.media-amazon.com/images/I/41rE77z4gEL.jpg)
![Johnson Level & Tool 420EM Professional Inch/Metric Combination Square, 16", Silver, 1 Square - Image 3](https://m.media-amazon.com/images/I/51C3F6pxAaL.jpg)

## 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.tn/products/369344472-johnson-level-and-tool-420em-professional-inch-metric-combination-square](https://www.desertcart.tn/products/369344472-johnson-level-and-tool-420em-professional-inch-metric-combination-square)

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-01-24*