---
product_id: 75258093
title: "4001-03-100 Machinist Knife Edge Solid Inspection Square 4 x 2-3/4 x .240 Inches Thick (100 mm x 70 mm) DIN 875/00 (Square w/in 3 microns or 0.0001 Inches)"
brand: "kinex measuring"
price: "$110.15"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/75258093-4001-03-100-machinist-knife-edge-solid-inspection-square-4
store_origin: US
region: United States of America
---

# 4" x 2-3/4" size 3 microns accuracy Solid tool steel 4001-03-100 Machinist Knife Edge Solid Inspection Square 4 x 2-3/4 x .240 Inches Thick (100 mm x 70 mm) DIN 875/00 (Square w/in 3 microns or 0.0001 Inches)

**Brand:** kinex measuring
**Price:** $110.15
**Availability:** ✅ In Stock

## Summary

> 🔧 Elevate Your Precision Game!

## Quick Answers

- **What is this?** 4001-03-100 Machinist Knife Edge Solid Inspection Square 4 x 2-3/4 x .240 Inches Thick (100 mm x 70 mm) DIN 875/00 (Square w/in 3 microns or 0.0001 Inches) by kinex measuring
- **How much does it cost?** $110.15 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/75258093-4001-03-100-machinist-knife-edge-solid-inspection-square-4)

## Best For

- kinex measuring enthusiasts

## Why This Product

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

## Key Features

- • **Lightweight Champion:** Weighs only 4.2 ounces, perfect for portability without sacrificing quality.
- • **Precision Engineering:** Adheres to strict German DIN 875/00 standards for unmatched accuracy.
- • **Unyielding Durability:** Crafted from solid tool steel, ensuring it never goes out of square.
- • **Versatile Measurement:** Compatible with both inch and metric systems for global usability.
- • **Self-Supporting Design:** Wide enough to stand on its edge, making it easy to use and store.

## Overview

The KINEX4001-03-100 Machinist Knife Edge Solid Inspection Square is a high-precision tool designed for professionals, measuring 4 x 2-3/4 x 0.240 inches thick. It adheres to stringent German DIN 875/00 standards, ensuring squareness within 3 microns (0.0001 inches). Made from solid tool steel, this inspection square is built to last and offers a self-supporting design for ease of use.

## Description

Kinex 4001-03-100 Machinist Knife Edge Solid Inspection Square 4 x 2-3/4 x .240 Inches Thick (100 mm x 70 mm) DIN 875/00 (Square w/in 3 microns or 0.0001 Inches)

## Features

- Overall size: 4" x 2-3/4" x 0.240"
- Adheres to strict German DIN 875/00 accuracy standards- squareness guaranteed to w/in 3 microns or 0.0001” (that's one ten thousandth of an inch!)
- Machined from a solid blank of tool steel (will never go out of square)
- Wide enough to stand on its edge on its own
- Made by Kinex Measuring

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Kinex Measuring |
| Part Number | 4001-03-100 |
| Item Weight | 4.2 ounces |
| Package Dimensions | 4.49 x 4.13 x 1.65 inches |
| Item model number | 4001-03-100 |
| Is Discontinued By Manufacturer | No |
| Style | Square |
| Material | Alloy Steel |
| Item Package Quantity | 1 |
| Measurement System | Inch, Metric |
| Batteries Included? | No |
| Batteries Required? | No |

## Images

![4001-03-100 Machinist Knife Edge Solid Inspection Square 4 x 2-3/4 x .240 Inches Thick (100 mm x 70 mm) DIN 875/00 (Square w/in 3 microns or 0.0001 Inches) - Image 1](https://m.media-amazon.com/images/I/7115-DfLJxL.jpg)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-04-26*