---
product_id: 6487674
title: "Starrett Combination Set with Square, Center and Non-Reversible Protractor Head and Blade - 12\" Blade Length, Hardened Steel, 4R Graduation Type - 9-12-4R"
brand: "starrett"
price: "KSh108935"
currency: KES
in_stock: true
url: https://www.desertcart.co.ke/products/6487674-starrett-combination-set-with-square-center-and-non-reversible-protractor
store_origin: KE
region: Kenya
---

# 4R Graduation Type 12" Blade Length Hardened Steel Starrett Combination Set with Square, Center and Non-Reversible Protractor Head and Blade - 12" Blade Length, Hardened Steel, 4R Graduation Type - 9-12-4R

**Brand:** starrett
**Price:** KSh108935
**Availability:** ✅ In Stock

## Summary

> 🔍 Measure Up to Excellence!

## Quick Answers

- **What is this?** Starrett Combination Set with Square, Center and Non-Reversible Protractor Head and Blade - 12" Blade Length, Hardened Steel, 4R Graduation Type - 9-12-4R by starrett
- **How much does it cost?** KSh108935 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.ke](https://www.desertcart.co.ke/products/6487674-starrett-combination-set-with-square-center-and-non-reversible-protractor)

## 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

- • **Versatile Design:** Easily adjust the square head for stability and versatility, making it perfect for any project, big or small.
- • **Centering Made Easy:** The Center Head attachment simplifies locating the center of cylindrical or square work, ensuring flawless results every time.
- • **Precision Engineering:** Experience unparalleled accuracy with a protractor head that offers a full 0 to 180° range for effortless angle measurement.
- • **American Craftsmanship:** Proudly made in the USA, Starrett combines over 140 years of heritage with modern innovation for tools that stand the test of time.
- • **Durability You Can Trust:** Crafted from premium hardened steel, this set is built to withstand the toughest jobs, ensuring longevity and reliability.

## Overview

The Starrett Combination Set is a versatile and durable measuring tool featuring a 12" blade length, made from hardened steel with 4R graduation type. It includes a square head, center head, and protractor head, designed for precision and ease of use in various construction and DIY tasks. Proudly made in the USA, it embodies over 140 years of quality craftsmanship.

## Description

Combination Set with Square, Center and Non-Reversible Protractor Head and Blade - 12" Blade Length, Hardened Steel, 4R Graduation Type - 9-12-4R

## 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° 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.

## Product Details

- **Material:** Hardened Steel
- **Brand:** Starrett
- **Color:** Silver, Black
- **Style:** Square
- **Graduation Range:** 1/64 Inches

## Images

![Starrett Combination Set with Square, Center and Non-Reversible Protractor Head and Blade - 12" Blade Length, Hardened Steel, 4R Graduation Type - 9-12-4R - Image 1](https://m.media-amazon.com/images/I/51n9atpcBvL.jpg)

## Questions & Answers

**Q: Does this come with a case?**
A: Yes, it has a hard plastic case with cut foam insulation.

**Q: Is the protractor helpful for a woodworker building furniture? The set is rather expensive and I would like to be sure I will get value out of it...**
A: Yes, I use the set exclusively for woodworking, and both the protractor and centering tool had been very useful.  In the long run you will find the set to be a huge value.  It might seem a bit steep of a cost at time of purchase, but worth every penny.  And if cared for will last a lifetime with no issue.  I never think about the cost of this set of tools - I'm just glad I have them.

**Q: Does reversible lock bolts mean the adjustment screw stays in place when removed from the ruler?**
A: No, not really.  It does stay in place, yes, but it's reversible in another way.  The "blade", which is the ruler, has a machined groove on only one side.  The locking bolt's internal mechanism engages with the groove.  Since the measuring scales on the blade are different left to right and top to bottom, there are four different possible scales to use.  With the locking bolt in its "normal" position, you can access two of the these by turning the blade around and reinserting it, but keeping the groove on the same side.  To use the other two scales, you need the groove on the blade to be on the opposite side.  To do this, you pull the locking bolt, rotate it 180 degrees, and let go.  Now the part of the mechanism that engages the blade groove is on the other side, and you can insert the blade with the other two scales facing you and choose the one you want by inserting the blade appropriately.

**Q: Does this have a satin chrome finish?**
A: The body is crinkle black, the ruler is satin stainless steel.

## Frequently Bought Together

- Starrett Combination Set with Square, Center and Non-Reversible Protractor Head and Blade - 12" Blade Length, Hardened Steel, 4R Graduation Type - 9-12-4R
- Starrett Spring Tempered Steel Rule with Satin Chrome Finish, Quick Reading and Inch Graduations - 6" Length, 4R Graduation Type, 3/64" Thickness - C604RE-6

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**Shop now:** [https://www.desertcart.co.ke/products/6487674-starrett-combination-set-with-square-center-and-non-reversible-protractor](https://www.desertcart.co.ke/products/6487674-starrett-combination-set-with-square-center-and-non-reversible-protractor)

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*Product available on Desertcart Kenya*
*Store origin: KE*
*Last updated: 2026-02-20*