Best Starrett Combination Set 300mm Deals of Nov 2026

Updated November 10, 2026Our site contains affiliate links for which we may be compensated.
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Starrett

Starrett Combination Set, 300mm Blade Length, 35 Graduation Type | With Square, Center, Reversible Protractor Head & Blade, Cast Iron Heads, Hardened Steel, Photo-Engraved Blade, 435M-300

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.
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on Amazon.com
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Starrett

Starrett Combination Set, 300mm / 11-3/4" Blade Length, 36 Graduation Type | With Square, Center & Reversible Protractor Head, Photo-Engraved Hardened Steel Blade, Cast-Iron Heads, Dual Scale, 435ME-300

All-in-One Layout Tool Set - Includes square, center, and reversible protractor heads with a 300mm (11-3/4") blade for layout, measuring, and angle marking applications. This set provides long-lasting durability and dependable performance.
Durable Cast Iron Heads - All heads are made of rugged cast iron with a black wrinkle finish for stability, strength, and long-lasting performance. This combination set ensures reliable precision under heavy use in demanding environments.
Precision-Engraved Blade - Features a hardened steel blade with photo-engraved graduations in metric (mm, 1/2mm) and imperial (32nds, 64ths) for dual-scale measurement accuracy. This tool guarantees highly readable graduations for accurate results.
Functional & Accurate Design - Reversible lock bolts, built-in spirit levels, and a direct-reading 180° protractor scale enhance ease of use and reliability. This set makes angle measurement and alignment effortless for accuracy-focused tasks.
Professional-Grade - Trusted by machinists, metalworkers, and woodworkers worldwide, this combination set is engineered for precision and built for everyday shop use. This set is a go-to for professionals needing consistent, high-performance tools.
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Starrett

$30 Savings

Starrett Combination Set, 300mm Blade Length, 35 Graduation Type | With Square, Center & Reversible Protractor Head, Photo-Engraved Hardened Steel Blade, Forged & Cast-Iron Heads, C434M-300

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.
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.
Details & specs
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on Amazon.com
Also available at
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Starrett

23% Off

Starrett Blade Only for Combination Squares, Sets & Bevel Protractors,300mm | 35 Graduation, Ideal for Woodworking and Metalworking - Satin Chrome Finish, CB300-35

Designed for Precision - The blade has a 35 graduation type with millimeter and 1/2 millimeter both sides that greatly increase the accuracy of your measurements.
Built to Last - Able to withstand even the harshest environments as our Starrett blades are designed to last a lifetime. They are very reliable and perfect for any project you take on.
Convenient - A tool designed to be user-friendly, making it easy for anyone to get the most out of their product. Whether you're an experienced professional or an amateur when it comes to home improvement, it is handy, accessible, and easy to use.
Accuracy You Can Count - Starrett precision measuring tools exceed accuracy and performance requirements of national and international standards, providing excellent fine precision tools for industrial, professional and consumer markets worldwide.
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.
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on Amazon.com
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Starrett

Starrett Combination Set, 12" Blade Length, 4R Graduation Type | With Square, Center, Reversible Protractor Head & Blade, Cast Iron Heads, Hardened Steel, Photo-Engraved Blade, C435-12-4R

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.
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.
Details & specs
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on Amazon.com
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Starrett

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

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.
Details & specs
Check Price
on Amazon.com
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Starrett

Starrett Square Head for 12"/300mm and Larger Combination Squares | Combination Sets, and Bevel Protractors, Smooth-Finished, Hardened Steel Center Head, H33-1224

Outstanding Performance - Manufacturing long-lasting and easy-to-use tools that provide consistent and reliable performance since 1880, Starrett is your assurance of unmatched precision and quality.
The Perfect Accessory - Starrett Tool is the perfect accessory for your professional and DIY home improvement. With a vast range of applications, it is the ideal tool for precision work in metalworking and woodworking.
Easy to Use - Incorporating convenience and excellence, Starrett tools are designed to be user-friendly. Whether you're an experienced professional or an amateur when it comes to home improvement, it is handy, accessible and easy to use.
Accurate and Reliable - When it comes to forcing measurement, you can trust the Starrett name. With over a century of experience in the industry, our products are designed to deliver accuracy and reliability.
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.
Details & specs
Check Price
on Amazon.com
Also available at
Zoro See New
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Starrett

Starrett Square Head for 12"/300mm and Larger Combination Squares | Combination Sets, and Bevel Protractors, Black Wrinkle Finished, Cast Iron Steel Center Head, H11-1224

Outstanding Performance - Manufacturing long-lasting and easy-to-use tools that provide consistent and reliable performance since 1880, Starrett is your assurance of unmatched precision and quality.
The Perfect Accessory - Starrett Tool is the perfect accessory for your professional and DIY home improvement. With a vast range of applications, it is the ideal tool for precision work in metalworking and woodworking.
Easy to Use - Incorporating convenience and excellence, Starrett tools are designed to be user-friendly. Whether you're an experienced professional or an amateur when it comes to home improvement, it is handy, accessible and easy to use.
Accurate and Reliable - When it comes to forcing measurement, you can trust the Starrett name. With over a century of experience in the industry, our products are designed to deliver accuracy and reliability.
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.
Details & specs
Check Price
on Amazon.com
Also available at
Zoro See New
10
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Starrett

Starrett Steel Combination Square with Square Head, 300mm Blade Length | Center Head Included, Cast Iron Head, Hardened Steel, Reversible Lock Bolt, Scriber, 36 Graduation Type, 11MEHC-300

Designed for Precision - The ruler has a 36 graduation type with 1/2mm and 32nds on one side; mm and 64ths reverse side which greatly increases the accuracy of your measurements.
The Perfect Attachment - The Center Head is an available attachment that provides an easy means of accurately locating the center of cylindrical or square work.
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.
Details & specs
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on Amazon.com
Our #1 Pick Today
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Starrett

Starrett Combination Set, 300mm Blade Length, 35 Graduation Type | With Square, Center, Reversible Protractor Head & Blade, Cast Iron Heads, Hardened Steel, Photo-Engraved Blade, 435M-300

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.
Details & specs
Check Price
on Amazon.com
Disclaimer: While we make every effort to ensure accuracy, we cannot guarantee that all product specifications, pricing, discounts, and details are complete or error-free. Because information is subject to change, we recommend verifying all details directly with the retailer prior to making a purchase. As an Amazon Associate, we earn from qualifying purchases.

10 Starrett Combination Set 300mm deals are available from: Amazon, starting from $80.99.

The biggest discount we found is 23% on Starrett Blade Only for Combination Squares, Sets & Bevel Protractors,300mm | 35 Graduation, Ideal for Woodworking and Metalworking - Satin Chrome Finish, CB300-35 (CB300-35) at Amazon.

The lowest price we found is $80.99 while the highest is $496.72. Prices for the best Starrett Combination Set 300mm deals average at $287.45.