The Original Sharp Edge Tester

Safer Edges.
Better Products.

Improve Safety

Protect your customers (and your company) from injuries related to harmful, sharp edges.

Achieve Quality

Validate consistent product quality by routinely testing components and finished products your customers will handle.

Ensure Compliance

Leverage the original, industry-standard tool to ensure you are in compliance with UL Standard 1439.

Sharp Edge Tester
SET-50™

The SET-50™ has been the leading tool for sharp edge safety compliance testing for more than 50 years. Designed and engineered for rugged environments, our durable tool is lightweight and simple to use.

Proudly Made in the USA, this is the original, high-quality tool developed to satisfy the UL 1439 standard for “determination of sharp edges”.

Tape Cap Kit
TC-3™

TC-3™ Tape Caps are specifically designed to meet UL 1439. Each molded plastic cap has three preassembled tape layers and a center targeting guideline. The tape caps are consumed as part of standardized testing for sharp edges. Each box contains 44 tape caps.

For consistent and accurate results, all tape caps are custom made to fit precisely on the Sharp Edge Tester SET-50™.


We have been helping customers create safer products since 1973.

Want to learn more? Please take a minute to learn more about our unique history.



We have been helping customers create safer products since 1973.

Want to learn more? Please take a minute to learn more about our unique history.


Counterfeits and Knockoffs

Third-party marketplaces are full of cheap, imitation sharp edge testing tools. They are designed to look like the SET-50™ but are made abroad with inferior materials. Some of these counterfeit tools will even use our company model number and contact info to make them appear legitimate. However, there is no guarantee these counterfeit tools help achieve UL 1439 safety standards.

Please be careful to only purchase the original SET-50™, made in the USA with the highest quality components.

Some of the customers we proudly serve.

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