---
product_id: 10034228
title: "Steel Combination Square with Square Head - 6\" Blade Length, Cast Iron Heads, Hardened Steel, Reversible Lock Bolt, Scriber, Spirit Level, 4R Graduation Type - 11H-6-4R"
brand: "starrett"
price: "€ 223.58"
currency: EUR
in_stock: true
reviews_count: 8
category: "Starrett"
url: https://www.desertcart.sk/products/10034228-steel-combination-square-with-square-head-6-blade-length-cast
store_origin: SK
region: Slovakia
---

# 6" hardened steel blade 4R graduation for ultra-precise reads cast iron square head Steel Combination Square with Square Head - 6" Blade Length, Cast Iron Heads, Hardened Steel, Reversible Lock Bolt, Scriber, Spirit Level, 4R Graduation Type - 11H-6-4R

**Brand:** starrett
**Price:** € 223.58
**Availability:** ✅ In Stock

## Summary

> 📏 Measure Like a Pro, Build Like a Legend

## Quick Answers

- **What is this?** Steel Combination Square with Square Head - 6" Blade Length, Cast Iron Heads, Hardened Steel, Reversible Lock Bolt, Scriber, Spirit Level, 4R Graduation Type - 11H-6-4R by starrett
- **How much does it cost?** € 223.58 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/10034228-steel-combination-square-with-square-head-6-blade-length-cast)

## Best For

- starrett enthusiasts

## Why This Product

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

## Key Features

- • **Legacy Quality:** Trusted by craftsmen and DIYers alike, this heirloom-grade tool elevates your precision game and workspace status.
- • **Built to Endure:** Cast iron heads and hardened steel blade ensure lifetime durability, even in tough jobsite conditions.
- • **Multi-Tool Mastery:** Includes spirit level and scriber for versatile use—scribe, level, gauge depth, and measure angles like a pro.
- • **Precision Perfected:** 4R graduation system delivers measurements down to 1/64" for flawless accuracy every time.
- • **Effortless Adjustments:** Reversible lock bolt and smooth thumbwheel let you secure and reposition the blade with one hand.

## Overview

The Starrett Steel Combination Square features a 6-inch hardened steel blade with a 4R graduation system for ultra-precise measurements down to 1/64 inch. Its cast iron square head and reversible lock bolt provide rugged durability and easy blade adjustments. Equipped with a spirit level and scriber, this versatile tool is designed for professionals and serious DIYers who demand accuracy and longevity in their measuring instruments.

## Description

Starrett Steel Combination Square with Square Head - 6" Blade Length, Cast Iron Heads, Hardened Steel, Reversible Lock Bolt, Scriber, Spirit Level, 4R Graduation Type - 11H-6-4R: Carpentry Squares: desertcart.com: Tools & Home Improvement

Review: An amazingly useful tool of heirloom quality - Starrett's 6" inch combination square is regarded by many as a the best on the market. I haven't evaluated any of the other high end squares, but to my mind it is nearly flawless. Why do I think this? It is square, not kinda' sorta' square if you hold it right. I mean square to the point where you can't detect any light between a machinist's reference block and the body or blade even with strong backlighting. Your eye can see light from a 0.001" opening so you know the square is at least this square. You can tighten the thumbwheel using only one hand to achieve the squareness described above. The numbers and lines are engraved so they don't wear off. The engravings are deep enough so that you can put the points of your dividers in them to accurately set the distance between the points. The satin finish on the blade makes it easy to read. The "4R" marking system (1/8, 1/16, 1/32 and 1/64) is more useful than you might realize. It cuts down errors due to misreading the scale and is faster. Reinserting the blade after removing it from the body is easy. On some squares, this is a major hassle. On the Starrett, the protrusion in the body which holds the blade generally stays in place when you remove the blade. If it gets misaligned with the slot, it is easy to rotate it back to parallel with the body so you can reinsert the blade. The spring holding the protrusion has the proper amount of stiffness. Another good thing is that it is rugged. I haven't hit it with a hammer or put a torch to it, but it has suffered a lot of drops onto a wooden floor without damage. Why don't I think it is perfect? It will rust (like almost all steel) if you don't take care of it. By taking care of it I mean storing it dry, free of salt from sweat, and dust. Not a big deal, but this is a precision square so treat it with the care it deserves. A wise man once said, "When you buy quality, you only cry once." Do yourself a favor and buy this square.
Review: High quality - Nice high quality very accurate not super heavy but definitely not lightweight they slide nice and easy and it tightens down good to keep it in place easy to read very high quality Steel wouldn't buy anything else

## Features

- Designed for Precision - The ruler has a 4R graduation type with 8ths, 16ths, quick reading 32nds, and 64ths that greatly increase the accuracy of your measurements.
- Built to Last - Able to withstand even the harshest environments as our combination squares are designed to last a lifetime. They are very reliable and perfect for any project you take on.
- Variety of Uses - The square head can be used for a variety of purposes such as scribing right angles and parallel lines, measuring, tri-squaring, mitering, depth gauging, height gauging, and levelling.
- Quality Made - The blade is made of hardened steel, offering exceptional durability and resistance to wear, rough usage, high-impact pressure, and shock.
- Versatile Layout Tool - Starrett squares are offered in a practical variety of styles to suit the needs of the individual, whether it be a toolmaker, mechanic, carpenter, or a "do-it-yourself" homeowner.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000E60MJE |
| Best Sellers Rank | #28,868 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #30 in Carpentry Squares |
| Brand | Starrett |
| Brand Name | Starrett |
| Color | black |
| Customer Reviews | 4.6 out of 5 stars 2,478 Reviews |
| Global Trade Identification Number | 00049659500516 |
| Graduation Range | 1/64 Inches |
| Item Dimensions L x W | 1"L x 0.7"W |
| Manufacturer | Starrett |
| Material | Steel, Iron |
| Material Type | Steel,Iron |
| Product Dimensions | 1"L x 0.7"W |
| Style | 4R Graduation Type |
| Style Name | 4R Graduation Type |
| UPC | 049659500516 |
| Unit Count | 1.0 Count |
| Warranty Description | One Year on defects in material and workmanship |

## Product Details

- **Brand:** Starrett
- **Color:** black
- **Graduation Range:** 1/64 Inches
- **Material:** Steel,Iron
- **Style:** 4R Graduation Type

## Images

![Steel Combination Square with Square Head - 6" Blade Length, Cast Iron Heads, Hardened Steel, Reversible Lock Bolt, Scriber, Spirit Level, 4R Graduation Type - 11H-6-4R - Image 1](https://m.media-amazon.com/images/I/5134qWLRoML.jpg)

## Available Options

This product comes in different **Model** options.

## Questions & Answers

**Q: Can this square head be used with other Starrett square rulers?**
A: Yes and no, it can be used with the 4 inch one, but not with the 12 inch and longer. There are 2 sizes the small one is 3/4 inch wide ruler and the larger ones are 1 inch.

**Q: Are the measurement lines engraved or painted on?**
A: Engraved

**Q: Is the rule available separately without the head?**
A: You can remove the rule from the head. If you are looking for just a six inch steel ruler I believe I bought on at Home Depot.

**Q: Is this still made in USA?**
A: As of this date (9 Sept 2020), they are still made in the USA according to the Starrett website.

## Customer Reviews

### ⭐⭐⭐⭐⭐ An amazingly useful tool of heirloom quality
*by C***S on March 12, 2012*

Starrett's 6" inch combination square is regarded by many as a the best on the market. I haven't evaluated any of the other high end squares, but to my mind it is nearly flawless. Why do I think this? It is square, not kinda' sorta' square if you hold it right. I mean square to the point where you can't detect any light between a machinist's reference block and the body or blade even with strong backlighting. Your eye can see light from a 0.001" opening so you know the square is at least this square. You can tighten the thumbwheel using only one hand to achieve the squareness described above. The numbers and lines are engraved so they don't wear off. The engravings are deep enough so that you can put the points of your dividers in them to accurately set the distance between the points. The satin finish on the blade makes it easy to read. The "4R" marking system (1/8, 1/16, 1/32 and 1/64) is more useful than you might realize. It cuts down errors due to misreading the scale and is faster. Reinserting the blade after removing it from the body is easy. On some squares, this is a major hassle. On the Starrett, the protrusion in the body which holds the blade generally stays in place when you remove the blade. If it gets misaligned with the slot, it is easy to rotate it back to parallel with the body so you can reinsert the blade. The spring holding the protrusion has the proper amount of stiffness. Another good thing is that it is rugged. I haven't hit it with a hammer or put a torch to it, but it has suffered a lot of drops onto a wooden floor without damage. Why don't I think it is perfect? It will rust (like almost all steel) if you don't take care of it. By taking care of it I mean storing it dry, free of salt from sweat, and dust. Not a big deal, but this is a precision square so treat it with the care it deserves. A wise man once said, "When you buy quality, you only cry once." Do yourself a favor and buy this square.

### ⭐⭐⭐⭐⭐ High quality
*by B***6 on October 31, 2025*

Nice high quality very accurate not super heavy but definitely not lightweight they slide nice and easy and it tightens down good to keep it in place easy to read very high quality Steel wouldn't buy anything else

### ⭐⭐⭐⭐⭐ Top Quality Professional Tool
*by M***S on February 3, 2010*

This is one of those unique tools that lives in a special place in my cabinet. It reminds me of a different world where craftsmanship and engineering reign supreme. Why the superlatives? Because it is more than a very well made, very accurate, high-quality combination square: It is because when I take this tool in my hands, I FEEL (add emphasis) different, and I work differently because of it. Corny, you say? It's just a pricey combination square, you say? Perhaps. But for me, there are only a handful of tools in my collection that evoke an emotional response whereby their very use transports me back to my grandfather's shop, where I can feel the textures, hear the machinery, and smell the varnish, dust, motor oil and age. This is one of those tools. It makes me nostalgic for an age- real or imagined- before outsourcing and cheap tools, when quality was the norm. This combi square simply looks and feels different than many of my other layout tools, aside from being more accurate and precise than any of them. It looks... machined. Enough of waxing emotional. this is a high quality, precision tool that belongs in your tool box if you need that kind of precision (squaring-up your miter saw or table saw, for example) and can afford it. I notice that this is now going for thirty bucks more than when I bought it two years ago. Yikes. Is it thirty bucks better? I doubt it. But then, I'm devoting five stars to this tool in part because of how the quality makes me feel, not just whether it is worth the dough for something that is very, very square and well-made. Would I recommend this tool for someone just to use for framing houses or building chicken coops? No, I wouldn't, as there'd be less bang for the buck there versus other combi squares that are square enough and go for far, far less. I would wholeheartedly recommend this, however, for those who need a precise layout instrument that will last, that has smooth, well-engineered action, and is dead level, square, and straight... And that makes you feel good just by holding it.

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-03-02*