---
product_id: 5146435
title: "Steel Combination Square with Square Head - 12\" Blade Length, Cast Iron Heads, Reversible Lock Bolt, Scriber, Spirit Level, 4R Graduation Type - 11H-12-4R"
brand: "starrett"
price: "R$2132"
currency: BRL
in_stock: true
reviews_count: 8
category: "Starrett"
url: https://www.desertcart.com.br/products/5146435-steel-combination-square-with-square-head-12-blade-length-cast
store_origin: BR
region: Brazil
---

# 12" hardened steel blade for precision Reversible lock bolt for secure adjustments Cast iron heads for rugged durability Steel Combination Square with Square Head - 12" Blade Length, Cast Iron Heads, Reversible Lock Bolt, Scriber, Spirit Level, 4R Graduation Type - 11H-12-4R

**Brand:** starrett
**Price:** R$2132
**Availability:** ✅ In Stock

## Summary

> 📐 Own the tool that measures up to your ambition.

## Quick Answers

- **What is this?** Steel Combination Square with Square Head - 12" Blade Length, Cast Iron Heads, Reversible Lock Bolt, Scriber, Spirit Level, 4R Graduation Type - 11H-12-4R by starrett
- **How much does it cost?** R$2132 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/5146435-steel-combination-square-with-square-head-12-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

- • **User-Friendly Design:** One-hand reversible lock bolt and easy blade reinsertion streamline your workflow without hassle.
- • **Effortless Versatility:** Multi-use square head supports scribing, tri-squaring, mitering, depth & height gauging, plus leveling.
- • **Precision at Every Mark:** 4R graduation with 1/64" increments ensures ultra-accurate measurements for flawless results.
- • **Trusted by Pros & DIYers:** Starrett’s heirloom-quality craftsmanship makes this tool a must-have for managers who demand precision.
- • **Built to Outlast Projects:** Cast iron heads and hardened steel blade deliver lifetime durability, ready for any job site challenge.

## Overview

The Starrett Steel Combination Square features a 12-inch hardened steel blade with 4R graduations for precise measurements down to 1/64 inch. Its cast iron heads provide exceptional durability, while the reversible lock bolt ensures secure, easy adjustments. Designed for versatile use including scribing, squaring, and leveling, this tool is built to last a lifetime and trusted by professionals and serious DIYers alike.

## Description

Starrett Steel Combination Square with Square Head - 12" Blade Length, Cast Iron Heads, Reversible Lock Bolt, Scriber, Spirit Level, 4R Graduation Type - 11H-12-4R: 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 | B0002CSBNO |
| Best Sellers Rank | #31,377 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #39 in Carpentry Squares |
| Brand | Starrett |
| Brand Name | Starrett |
| Customer Reviews | 4.7 out of 5 stars 2,481 Reviews |
| Global Trade Identification Number | 00049659500554, 00094705119709 |
| Graduation Range | 1/64 Inches |
| Item Dimensions L x W | 1"L x 1.4"W |
| Item Height | 12.3 inches |
| Item Weight | 1.2 Pounds |
| Manufacturer | Starrett |
| Material | Alloy Steel |
| Material Type | Alloy Steel |
| Product Dimensions | 1"L x 1.4"W |
| Style | 4R Graduation Type |
| Style Name | 4R Graduation Type |
| UPC | 094705119709 049659500554 |
| Unit Count | 1.0 Count |
| Warranty Description | One Year on defects in material and workmanship |

## Product Details

- **Material:** Alloy Steel
- **Brand:** Starrett
- **Style:** 4R Graduation Type
- **Graduation Range:** 1/64 Inches
- **Product Dimensions:** 1"L x 1.4"W

## Images

![Steel Combination Square with Square Head - 12" Blade Length, Cast Iron Heads, Reversible Lock Bolt, Scriber, Spirit Level, 4R Graduation Type - 11H-12-4R - Image 1](https://m.media-amazon.com/images/I/61tHgdkq+PL.jpg)

## Available Options

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

## 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

### ⭐⭐⭐⭐⭐ Great tool
*by T***R on September 28, 2025*

Best square for a trim carpenter and do a mill worker, the fit is great, dead square out of the box, and holds it measurement where u put it. As it should. Yes it is expensive but so is using a cheep knock off and getting bad cuts

## Frequently Bought Together

- Starrett Steel Combination Square with Square Head - 12" Blade Length, Cast Iron Heads, Reversible Lock Bolt, Scriber, Spirit Level, 4R Graduation Type - 11H-12-4R
- Starrett 6-Inch Spring-Tempered Steel Rule with Inch Graduations - Ideal for Metalworking and Engineering - Satin Chrome Finish, 4R Graduations, 3/64-Inch Thickness - C604RE-6

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-02-17*