Best Starrett Protractors in 2026

7-Inch miter saw protractor

Allows direct transfer of the work angle to the miter saw in 3 steps with no calculations

Durable 1/4-inch thick aluminum alloy; Teflon O-ring for smooth, precise operation

Precise and Accurate - The 505P-7 is a 175mm (7") Plastic Saw Miter Protractor that is made from a durable hardened plastic that has markings which provide accurate angle calculations for transferring and making cuts with the utmost precision.

Easy To Use - Starrett protractors are an easy-to-use cutting guide for carpenters, plumbing, builders, and any DIY home improvement jobs. They have 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.

Magnetic base frees hands when used on ferrous surfaces

Measures any angle for pitch or slope

Handy rise, run, angle and pitch information on back of the tool

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.

Ideal Use - The Starrett C183 Steel Protractor is a highly useful and accurate tool for setting bevels, transferring angles, small squaring tasks, checking cutter clearances within certain limits, and many other applications.

Read Angles With Ease - This protractor includes double graduations from 0-180 degrees in opposite directions, permitting the direct reading of angles and supplementary angles. No more struggling to read measurements with a single graduation!

Durable Steel Construction - The protractor is made of durable steel, ensuring that it will last for years. The construction also makes it resistant to wear and tear, so you can use it time and time again.

Angular measurement is from 0-180 degree in opposite directions allowing the direct reading of angles and supplementary angles

This has a flat surface on the back of the head permitting laying the tool flat on paper or work

No-glare satin chrome finish

Locking protractor head for 12 Inch square only

Featuring a spirit level and double graduations reading 0 to 180 degrees

Measuring tools have working surfaces ground to a demanding Plus/Minus .00001 Inch

Ideal Use - The Starrett C19 Steel Protractor is a highly useful and accurate tool for setting bevels, transferring angles, small squaring tasks, checking cutter clearances within certain limits, and many other applications.

Read Angles With Ease - This protractor includes double graduations from 0-180 degrees in opposite directions, permitting the direct reading of angles and supplementary angles. No more struggling to read measurements with a single graduation!

Durable Steel Construction - The protractor is made of durable steel, ensuring that it will last for years. The construction also makes it resistant to wear and tear, so you can use it time and time again.

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.

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.

Built to Last - Able to withstand even the harshest environments as our protractor heads are designed to last a lifetime. They are very reliable and perfect for any project you take on.

Quality Made - The reversible protractor head is made from cast iron with a black smooth finish. It can absorb a lot of energy without breaking, making it a tough and resilient product for everyday use.

Quick-Reading

Satin chrome finish

Both tools have a flat surface on the back of the head permitting laying the tool flat on paper or 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.

Built to Last - Able to withstand even the harshest environments as our protractor heads are designed to last a lifetime. They are very reliable and perfect for any project you take on.

Quality Made - The non-reversible protractor head is made from cast iron with a black wrinkle finish. It can absorb a lot of energy without breaking, making it a tough and resilient product for everyday use.

The Package Length of the Product is 18.796 centimeters

The Package Width of the Product is 9.906 centimeters

The Package Height of the Product is 4.318 centimeters

Easy-to use tool has two laser engraved scales

Miter cut scale transfers readings directly to the miter saw for miter joints

Single cut scale transfers readings directly to the miter saw for butt joints