---
product_id: 369344472
title: "Johnson Level & Tool 420EM Professional Inch/Metric Combination Square, 16\", Silver, 1 Square"
brand: "johnson"
price: "167 Lei"
currency: RON
in_stock: true
reviews_count: 5
category: "Johnson"
url: https://www.desertcart.ro/products/369344472-johnson-level-and-tool-420em-professional-inch-metric-combination-square
store_origin: RO
region: Romania
---

# 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:** 167 Lei
**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?** 167 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/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.
- • **Dual-Scale Mastery:** Permanently etched English & metric graduations 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 on the go.
- • **Built to Brave the Jobsite:** Heavy-duty cast zinc head with chip-resistant e-coating stands up to the toughest conditions.

## 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 alignment, and a durable cast zinc head with chip-resistant finish. Designed in the USA, it delivers unmatched accuracy and rugged durability for demanding construction and machining tasks.

## Description

Little tool, big results. Johnson's easy to use 12" metal combination square gives you the accuracy and precision you need for every job. Its stainless steel blade has english graduations of 1/8", 1/16" and 1/32" as well as metric graduations that are permanently etched in black for easy readability. It features a durable acrylic vial, heavy-duty cast zinc head with a black, chip-resistant e-coating finish, and hardened screw-in scriber that won't fall out so that this combo square can withstand even the roughest job site abuse. It was also designed with maximum accuracy in mind - its square head is CNC machined for greater accuracy, and the Auto-Lock™ blade assembly makes it easier to accurately line up your tool for use.

Review: Muy bueno - Excelente producto. Resistente
Review: Bonne qualité - Elle est juste et droite

## 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 |
| Brand | Johnson |
| Brand Name | Johnson |
| Color | Black |
| Colour | Black |
| Customer Reviews | 4.4 out of 5 stars 1,923 Reviews |
| Global Trade Identification Number | 00049448003679, 00049448400003 |
| Graduation Range | 1/32 Inches |
| Graduation range | 1/32 Inches |
| Item Dimensions L x W | 30.5L x 14W centimeters |
| Item Type Name | Johnson Level & Tool 400EM-S 12-Inch Metal Combination Square |
| Item Weight | 0.3 Pounds |
| Manufacturer | Johnson Level & Tool |
| Material | Alloy Steel |
| Material Type | Alloy Steel |
| Product dimensions | 30.5L x 14W centimeters |
| Style | Metal Combination Square |
| Style Name | Metal Combination Square |
| UPC | 049448003679 049448400003 |

## 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/51C3F6pxAaL.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/21jcpu0oRkL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Muy bueno
*by J***S on 12 July 2020*

Excelente producto. Resistente

### ⭐⭐⭐⭐⭐ Bonne qualité
*by P***T on 10 February 2026*

Elle est juste et droite

### ⭐ Broke with first use
*by K***A on 2 March 2023*



## 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

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.ro/products/369344472-johnson-level-and-tool-420em-professional-inch-metric-combination-square](https://www.desertcart.ro/products/369344472-johnson-level-and-tool-420em-professional-inch-metric-combination-square)

---

*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-02-27*