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Starrett 20-24 Master Precision Square 24" Blade

Starrett 20-24 Master Precision Square 24" Blade

by Starrett
Have a question?

Call/Text Gustavo before you buy.

I personally review every order and I'm happy to answer questions about compatibility, specs, or lead times. Don't guess - let's get it right the first time.

617-398-7852 support@precisionengineeringsupply.com
Gustavo
Founder, Precision Engineering Supply
Available Mon – Fri
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Save $119.00
$2,844.00
$2,725.00
  • Ultra-accurate 90° reference square
  • 24" hardened and precision-ground steel blade
  • Solid, stable base
  • Non-graduated design
  • Extreme rigidity prevents flexing
  • Starrett-certified master accuracy
Customers rate us 4.5/5 based on 49 reviews.

Starrett 20-24 Master Precision Square 24" Blade

$2,725.00

Description

Starrett 20-24 Master Precision Square 24" Blade

The Starrett 20-24 Master Precision Square is a high-accuracy reference tool designed for inspecting squareness, setting up machinery, and verifying fixtures in precision machining and quality control environments. Featuring a 24" hardened steel blade and a heavy-duty base, this square is engineered to maintain exact 90° alignment with exceptional stability. Starrett’s meticulous manufacturing standards ensure long-term reliability, making this master precision square an essential instrument for toolrooms, labs, and inspection departments.

 

Key Features

  • High-precision 90° master square for inspection-grade accuracy
  • 24" hardened, ground, and lapped steel blade
  • Heavy-duty base ensures perfect alignment and stability
  • Non-graduated blade eliminates distractions for reference work
  • Excellent rigidity to resist deflection on large setups
  • Starrett-certified accuracy for professional metrology applications

 

Specifications

Model 20-24
Blade Length 24"
Material Hardened, ground steel blade with solid base
Type Master Precision Square
Accuracy Within ±0.0001" per inch (Starrett master grade)
Graduations None (non-graduated)

 

Items Included

  • Starrett 20-24 Master Precision Square (24" blade)
  • Protective storage case
  • Factory inspection accuracy certificate

 

INSIZE ISHW-L20B Webster Hardness Tester ManualStarrett 20-24 Master Precision Square 24" Blade Catalog

Shipping

Shipping is FAST & FREE on all orders shipped to the continental USA.

Why Buy From Us

Shipping is FAST & FREE on all orders shipped to the continental USA.

Best Price Guarantee. 

30 Day Easy Returns. 

Se Habla Español - Falamos Português

Pricing

We will beat ANY price found online! Reach out to us for more information by calling at (617) 398-7852 or emailing us at support@precisionengineeringsupply.com.

Returns

Easy 30 day returns! We pride ourselves in helping you with your needs Please reach out by calling at (617) 398-7852 or emailing us at support@precisionengineeringsupply.com to start your return.

Financing

Enjoy flexible payment options with Affirm. Split your purchase into easy, interest-free installments or choose a financing plan that fits your budget — all available directly at checkout.

Customers are saying

4.51 ★ (49)
Verified
Have a question?

Call or Text Gustavo Before You Buy!

Every order gets my personal attention. Call before you buy and I'll make sure it's the right fit and the right price!

(617) 398-7852 support@precisionengineeringsupply.com
Gustavo
Founder and CEO
Available Mon – Fri
Description

Starrett 20-24 Master Precision Square 24" Blade

The Starrett 20-24 Master Precision Square is a high-accuracy reference tool designed for inspecting squareness, setting up machinery, and verifying fixtures in precision machining and quality control environments. Featuring a 24" hardened steel blade and a heavy-duty base, this square is engineered to maintain exact 90° alignment with exceptional stability. Starrett’s meticulous manufacturing standards ensure long-term reliability, making this master precision square an essential instrument for toolrooms, labs, and inspection departments.

 

Key Features

  • High-precision 90° master square for inspection-grade accuracy
  • 24" hardened, ground, and lapped steel blade
  • Heavy-duty base ensures perfect alignment and stability
  • Non-graduated blade eliminates distractions for reference work
  • Excellent rigidity to resist deflection on large setups
  • Starrett-certified accuracy for professional metrology applications

 

Specifications

Model 20-24
Blade Length 24"
Material Hardened, ground steel blade with solid base
Type Master Precision Square
Accuracy Within ±0.0001" per inch (Starrett master grade)
Graduations None (non-graduated)

 

Items Included

  • Starrett 20-24 Master Precision Square (24" blade)
  • Protective storage case
  • Factory inspection accuracy certificate

 

INSIZE ISHW-L20B Webster Hardness Tester ManualStarrett 20-24 Master Precision Square 24" Blade Catalog

Shipping

Shipping is FAST & FREE on all orders shipped to the continental USA.

Why Buy From Us

Shipping is FAST & FREE on all orders shipped to the continental USA.

Best Price Guarantee. 

30 Day Easy Returns. 

Se Habla Español - Falamos Português

Pricing

We will beat ANY price found online! Reach out to us for more information by calling at (617) 398-7852 or emailing us at support@precisionengineeringsupply.com.

Returns

Easy 30 day returns! We pride ourselves in helping you with your needs Please reach out by calling at (617) 398-7852 or emailing us at support@precisionengineeringsupply.com to start your return.

Financing

Enjoy flexible payment options with Affirm. Split your purchase into easy, interest-free installments or choose a financing plan that fits your budget — all available directly at checkout.