---
product_id: 10888060
title: "Starrett Combination Set, 12\" Blade Length, 4R Graduation Type"
brand: "starrett"
price: "Bs.12985"
currency: BOB
in_stock: true
reviews_count: 10
category: "Starrett"
url: https://www.desertcart.bo/products/10888060-starrett-combination-set-12-blade-length-4r-graduation-type
store_origin: BO
region: Bolivia
---

# 12" precision blade length Lockable adjustable square head Hardened steel & cast iron durability Starrett Combination Set, 12" Blade Length, 4R Graduation Type

**Brand:** starrett
**Price:** Bs.12985
**Availability:** ✅ In Stock

## Summary

> 🛠️ Starrett: The last measuring tool you'll ever need—precision meets legacy.

## Quick Answers

- **What is this?** Starrett Combination Set, 12" Blade Length, 4R Graduation Type by starrett
- **How much does it cost?** Bs.12985 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.bo](https://www.desertcart.bo/products/10888060-starrett-combination-set-12-blade-length-4r-graduation-type)

## 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

- • **Precision that lasts a lifetime:** Engraved satin-finish blade ensures razor-sharp, easy-to-read measurements for flawless accuracy every time.
- • **Center head for perfect alignment:** Effortlessly locate centers on cylindrical or square workpieces, elevating your craftsmanship to pro-level precision.
- • **Rock-solid stability on every job:** Lockable square head with specially designed bolt guarantees zero slip, empowering you to work confidently and efficiently.
- • **Built on 140+ years of American heritage:** Proudly made in the USA with premium materials, this tool is an investment in quality that outlasts trends and tools alike.
- • **Versatile protractor with dual graduations:** 0-180° range with revolving turrets lets you measure angles above or below the blade instantly—no guesswork needed.

## Overview

The Starrett Combination Set features a 12-inch hardened steel blade with 4R graduation, a lockable adjustable square head, a dual-graduation protractor, and a center head attachment. Crafted with durable cast iron and steel, it delivers unmatched accuracy and stability for professional-grade measurements. Proudly made in the USA, this set combines over 140 years of precision toolmaking heritage with modern durability, making it ideal for carpenters, machinists, and DIY pros who demand excellence.

## Description

Starrett Combination Set, 12" Blade Length, 4R Graduation Type | With Square, Center, Non-Reversible Protractor Head & Blade, Cast Iron Heads, Hardened Steel, Photo-Engraved Blade, 9-12-4R: Carpentry Squares: desertcart.com: Tools & Home Improvement

Review: Quality measurement tool for critical applications... - It was tough for me to break down and spend the money on this Starrett combination square, but I am so glad that I did. I have used a few different combination squares in my 22 years of woodworking; Starrett has always proven to be the most accurate and last the longest. I bought a $40 square several years ago and noticed it was just a little off from being square. When I put the Starrett square against my $40 square, you can really notice the difference of how far off my cheaper square is. I compared the Starrett square with my machinist protractor and they matched up. So I checked all the squares in my shop with the Starrette and all but one were off by around .75 degrees. I know they were not perfectly square before checking them, but it is now very nice to have something that is perfectly square so that I can properly set my machines. This item arrived without an oil protective coating. I like that since I don't like to have to do a lot of cleaning before using a tool. Before I used it, I applied a good coat of Renaissance wax to help the parts slide well and protect it from rusting. This method of protecting my metal tools has proven very good in my high humidity environment. The ruler has a satin finish and the lines/numbers are engraved. It is very easy to read and the lines are very thin so you can get precise measurements (unlike stamped or CNC'd rulers). The adjustment knobs are also very easy to handle compared to my other squares. The square arrived in a quality plastic case with cut foam inserts for each of the pieces.
Review: Great tools! - It's a Starrett - if you are looking for the best, this is it. I have Starrett tools I inherited from my grandfather that are still as good today as the day he opened the box 50 years ago. They just have that killer "old tool" look. The new ones have the same quality, look and feel. 07/31/2016 Three years on - You can buy a lot of tools like this for less money. But, these are extremely high quality, very accurate and after three years of heavy use show no wear. They come in a great protective case, and with minimal care will last me a lifetime. As I stated above I have Starrett tools my grandfather bought in the 1960's that are still fully serviceable today. If you are looking to buy this kind of tool once - save the extra dollars up and buy the Starrett.

## Features

- Easy to Use - The square head can be moved up and down on the rule with a lockable assembly and a specially designed bolt to engage the slot for stability and versatility while measuring.
- Perfect Attachment - The Center Head is an available attachment that provides an easy means of accurately locating the center of cylindrical or square work.
- Get Accurate Measurements - The protractor head has revolving turrets with direct-reading double graduations, a full 0 to 180-Degree range in opposite directions which permits accurate and quick direct reading of angles above or below the blade.
- Complete Quality Made Tool - The set includes the rule, square, protractor, and center heads that are made from durable hardened steel, which can withstand even the most strenuous jobs. It's perfect for any construction project or DIY task.
- The Standard for Excellence - Proudly made in the USA, Starrett combines over 140 years of American heritage and innovation with globally sourced materials to deliver exceptional quality tools and products.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000E62NFA |
| Best Sellers Rank | #264,125 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #293 in Carpentry Squares |
| Brand | Starrett |
| Brand Name | Starrett |
| Color | Black |
| Customer Reviews | 4.7 out of 5 stars 96 Reviews |
| Global Trade Identification Number | 00049659500424 |
| Graduation Range | 1/64 inches |
| Item Dimensions L x W | 12"L x 4"W |
| Item Weight | 2.2 pounds |
| Manufacturer | Starrett |
| Material | Steel, Iron |
| Material Type | Steel,Iron |
| Model | 9-12-4R |
| Number of Items | 1 |
| Part Number | 9-12-4R |
| Product Dimensions | 12"L x 4"W |
| Style | Square |
| Style Name | Square |
| UPC | 049659500424 |
| Unit Count | 1 Count |
| Warranty Description | One Year on defects in material and workmanship |

## Images

![Starrett Combination Set, 12" Blade Length, 4R Graduation Type - Image 1](https://m.media-amazon.com/images/I/51n9atpcBvL.jpg)
![Starrett Combination Set, 12" Blade Length, 4R Graduation Type - Image 2](https://m.media-amazon.com/images/I/61ZNL5vDoLL.jpg)
![Starrett Combination Set, 12" Blade Length, 4R Graduation Type - Image 3](https://m.media-amazon.com/images/I/71b9qVulyYL.jpg)
![Starrett Combination Set, 12" Blade Length, 4R Graduation Type - Image 4](https://m.media-amazon.com/images/I/71Jp4LV1aEL.jpg)
![Starrett Combination Set, 12" Blade Length, 4R Graduation Type - Image 5](https://m.media-amazon.com/images/I/71-wKIMlEiL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Quality measurement tool for critical applications...
*by A***D on October 3, 2012*

It was tough for me to break down and spend the money on this Starrett combination square, but I am so glad that I did. I have used a few different combination squares in my 22 years of woodworking; Starrett has always proven to be the most accurate and last the longest. I bought a $40 square several years ago and noticed it was just a little off from being square. When I put the Starrett square against my $40 square, you can really notice the difference of how far off my cheaper square is. I compared the Starrett square with my machinist protractor and they matched up. So I checked all the squares in my shop with the Starrette and all but one were off by around .75 degrees. I know they were not perfectly square before checking them, but it is now very nice to have something that is perfectly square so that I can properly set my machines. This item arrived without an oil protective coating. I like that since I don't like to have to do a lot of cleaning before using a tool. Before I used it, I applied a good coat of Renaissance wax to help the parts slide well and protect it from rusting. This method of protecting my metal tools has proven very good in my high humidity environment. The ruler has a satin finish and the lines/numbers are engraved. It is very easy to read and the lines are very thin so you can get precise measurements (unlike stamped or CNC'd rulers). The adjustment knobs are also very easy to handle compared to my other squares. The square arrived in a quality plastic case with cut foam inserts for each of the pieces.

### ⭐⭐⭐⭐⭐ Great tools!
*by A***I on November 19, 2013*

It's a Starrett - if you are looking for the best, this is it. I have Starrett tools I inherited from my grandfather that are still as good today as the day he opened the box 50 years ago. They just have that killer "old tool" look. The new ones have the same quality, look and feel. 07/31/2016 Three years on - You can buy a lot of tools like this for less money. But, these are extremely high quality, very accurate and after three years of heavy use show no wear. They come in a great protective case, and with minimal care will last me a lifetime. As I stated above I have Starrett tools my grandfather bought in the 1960's that are still fully serviceable today. If you are looking to buy this kind of tool once - save the extra dollars up and buy the Starrett.

### ⭐⭐⭐⭐⭐ quality a superior tool
*by J***P on February 12, 2014*

fine craftsmen ship accurate easy to read. it might cost a little more than other square sets ,but worth every cent you won't be disappointed

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*Product available on Desertcart Bolivia*
*Store origin: BO*
*Last updated: 2026-08-21*