---
product_id: 13925576
title: "Starrett ProSite Miter Protractor, 12\" Aluminum"
brand: "starrett"
price: "200456CFA"
currency: XOF
in_stock: true
reviews_count: 13
category: "Starrett"
url: https://www.desertcart.sn/products/13925576-starrett-prosite-miter-protractor-12-aluminum
store_origin: SN
region: Senegal
---

# 12" precision scale Laser engraved dual scales Smooth pivot assembly Starrett ProSite Miter Protractor, 12" Aluminum

**Brand:** starrett
**Price:** 200456CFA
**Availability:** ✅ In Stock

## Summary

> ⚡ Cut smarter, not harder — the pro’s secret weapon for flawless angles!

## Quick Answers

- **What is this?** Starrett ProSite Miter Protractor, 12" Aluminum by starrett
- **How much does it cost?** 200456CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/13925576-starrett-prosite-miter-protractor-12-aluminum)

## 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

- • **Built to Endure:** Durable aluminum body with scratch-resistant finish stands up to tough job site conditions.
- • **Cut Waste, Not Corners:** Reduce material waste and rework with first-time-right angle settings—no more guesswork.
- • **Engineered for Efficiency:** Smooth pivot mechanism lets you set and lock angles quickly, saving valuable work time.
- • **Versatile Angle Transfers:** Easily transfer miter and single cut angles directly to your saw for seamless joints.
- • **Pinpoint Accuracy Every Time:** Dual laser-engraved scales ensure flawless angle measurements for perfect cuts.

## Overview

The Starrett ProSite Miter Protractor 12" is a precision aluminum tool featuring dual laser-engraved scales and a smooth pivot assembly, designed to deliver accurate miter and single cut angle measurements. Ideal for carpenters, plumbers, and DIY pros, it reduces waste and speeds up workflow with durable, scratch-resistant construction and easy angle transfers directly to your miter saw.

## Description

Starrett ProSite Miter Protractor, 12" Aluminum | With Two Laser Engraved Scales, Ideal for Carpenters, Plumbers, and DIY Home Improvement, 505A-12 - Starrett Prosite Protractor - desertcart.com

Review: A carpenters best friend. - Amazing little job site tool. I use it all the time. It finds the perfect angle every time. I highly recommend this tool. Makes the job so much easier.
Review: 5 star quality, 4 star price. - Look, let's be blunt. No matter how good your hotshot framing and drywall crews are, even new construction is never square. And in old houses, it just gets worse. And this doesn't even take into account irregular angled walls that are anyone's guess. Now I know the rest of you all payed attention in 8th grade geometry, but for those of us who don't like mulling over math problems on the job site, the Sarrette is as good as it gets. Read the single cut angle off one side. Read the miter cut off the other. And the tool can (and should) be used to set your miter saw to the exact angle you need. Read it off the wall, set the blade using the tool, cut. Perfect. Oh, the pain I could have saved myself if only I'd bought one of these earlier. Cutting scrap test pieces and banging my head against the wall wondering how I'd gotten it wrong again. Basically, if you do a lot of finish carpentry, having one of these will save you a lot of time and money. Even for the homeowner that's doing a few rooms, it's probably worth it if you want really good joints, especially in an old house where most of your "90 degree" corners will be off by several degrees from 90. I only have two minor beefs. OK, for me it's worth it as I'll easily save it back over and over again. In fact I bought two. But c'mon guys, $42.99? I'm surprised someone hasn't ripped off the idea and isn't making one at $14.99, but keep charging this price and someone soon will. Also, I'd like an easy way to adjust the tension of the legs so it would hold the exact angle more firmly. One of my miter saws has a habit of swinging slightly when you reach to tighten the adjustment knob. Then the blade hits the protractor and messes up the reading. The ease of use does make up for the shortcomings. If you have a miter saw and do finish work, you need one of these.

## Features

- Measure with Precision - The 505A-12 is a 300mm (12") Plastic Miter Protractor that is made from aluminum that has markings which provide accurate angle calculations for precise operation.
- Easy To Use - Starret protractors are an easy-to-use cutting guide for carpenters, plumbing, builders, and DIY home improvement jobs. It has two laser engraved scales and a smooth pivot assembly for precise operation.
- Miter Cut & Single Cut Transfers - Our protractors offer miter cut scale transfer readings which go directly to the miter saw for miter joints and single cut scale transfers readings for butt joints.
- Everything You Need - Cut down your work time and reduce waste by using Starrett's top of the line protractor. It's durable scratch resistant design is ideal for any workplace and construction job.
- Measure Right The First Time - Our protractors will simply set your saw to the right angle. Upside down or backward, rest assured that you will always get the correct reading.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0000DCBLW |
| Best Sellers Rank | #141,146 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #80 in Construction Protractors |
| Brand | Starrett |
| Brand Name | Starrett |
| Color | Black |
| Customer Reviews | 4.6 out of 5 stars 919 Reviews |
| Global Trade Identification Number | 00049659677522 |
| Included Components | 12 In. PROSITE Miter Saw Protractor |
| Item Dimensions L x W | 12"L x 3"W |
| Item Thickness | 0.8 inches |
| Item Weight | 1.44 ounces |
| Manufacturer | Starrett |
| Material | Aluminum |
| Material Type | Aluminum |
| Model | 505A-12 |
| Number of Items | 1 |
| Part Number | 505A-12 |
| Product Dimensions | 12"L x 3"W |
| Style | Aluminum Dial Reading Miter |
| Style Name | Aluminum Dial Reading Miter |
| UPC | 049659677522 |
| Unit Count | 1 Count |
| Warranty Description | 1 yr |

## Product Details

- **Material:** Aluminum
- **Brand:** Starrett
- **Color:** silver
- **Style:** Aluminum Dial Reading Miter
- **Product Dimensions:** 0.79"L x 6.85"W

## Images

![Starrett ProSite Miter Protractor, 12" Aluminum - Image 1](https://m.media-amazon.com/images/I/513jdjb-EWL.jpg)
![Starrett ProSite Miter Protractor, 12" Aluminum - Image 2](https://m.media-amazon.com/images/I/61JJh3TBSVL.jpg)
![Starrett ProSite Miter Protractor, 12" Aluminum - Image 3](https://m.media-amazon.com/images/I/51WH4CToE4L.jpg)
![Starrett ProSite Miter Protractor, 12" Aluminum - Image 4](https://m.media-amazon.com/images/I/61zGPgtjhKL.jpg)
![Starrett ProSite Miter Protractor, 12" Aluminum - Image 5](https://m.media-amazon.com/images/I/71VofSicN3L.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ A carpenters best friend.
*by C***R on June 30, 2026*

Amazing little job site tool. I use it all the time. It finds the perfect angle every time. I highly recommend this tool. Makes the job so much easier.

### ⭐⭐⭐⭐⭐ 5 star quality, 4 star price.
*by J***Y on January 25, 2007*

Look, let's be blunt. No matter how good your hotshot framing and drywall crews are, even new construction is never square. And in old houses, it just gets worse. And this doesn't even take into account irregular angled walls that are anyone's guess. Now I know the rest of you all payed attention in 8th grade geometry, but for those of us who don't like mulling over math problems on the job site, the Sarrette is as good as it gets. Read the single cut angle off one side. Read the miter cut off the other. And the tool can (and should) be used to set your miter saw to the exact angle you need. Read it off the wall, set the blade using the tool, cut. Perfect. Oh, the pain I could have saved myself if only I'd bought one of these earlier. Cutting scrap test pieces and banging my head against the wall wondering how I'd gotten it wrong again. Basically, if you do a lot of finish carpentry, having one of these will save you a lot of time and money. Even for the homeowner that's doing a few rooms, it's probably worth it if you want really good joints, especially in an old house where most of your "90 degree" corners will be off by several degrees from 90. I only have two minor beefs. OK, for me it's worth it as I'll easily save it back over and over again. In fact I bought two. But c'mon guys, $42.99? I'm surprised someone hasn't ripped off the idea and isn't making one at $14.99, but keep charging this price and someone soon will. Also, I'd like an easy way to adjust the tension of the legs so it would hold the exact angle more firmly. One of my miter saws has a habit of swinging slightly when you reach to tighten the adjustment knob. Then the blade hits the protractor and messes up the reading. The ease of use does make up for the shortcomings. If you have a miter saw and do finish work, you need one of these.

### ⭐⭐⭐⭐⭐ Must Have Protractor
*by K***R on January 16, 2012*

This is just a very nice tool, well made, hefty, comes with a carrying pouch for protection and it has that "old school" feel, not some flimsy cheapo tool. This protractor is a solid tool, accurate, and a pleasure to use. I use it for setting table saw fence and miter gauge alignment, and I check the lineup of my Festool MFT track, and any angle that needs stetting I always check for square and with this Starrett 4041-12 it is a snap. I keep it within reach and always verify my setups. There nothing better than knowing that you are dead on every time. I have other devices that serve the same function, even digital ones but tins is the one sitting right where I am working, always, and I trust it implicitly it does not let me make mistakes. I think one reason that I choose this is that it just feels right in your hands the movement is firm and smooth and you know you can trust it. Although the movement is quite firm and retains it's setting well, it can be prone to accidental movement as there is no physical lock so you need be careful if you are taking the measurement to another place, this is not a problem as it holds the setting as long as you don't somehow bump the protractor and move the setting. I don't even worry about that as there is nothing wrong with working carefully, in fact that is a plus you ought to be paying attention to the job at hand. I am most satisfied with this item and highly recommend it to anyone who wants to get serious when dong setups in the shop. Don't accept some crappy plastic substitute, ignore the price, pay the man and be happy knowing you will know the angles for years to come.

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-08-13*