Starrett Prosite Protractor No 505A
Starrett prosite protractor no 505a is article about Hand Tools bookmarked by mario with ID 1354004814 was uploaded on 05-04-2019 and has been viewed 326,839 times.
The ProSite protractor made by Starrett (model No.505A) was invented by trim carpenter Marc Shapiro.He became frustrated on a job installing a large amount of prefinished walnut trim (no room for error like a painted job would allow).
After spending many hours jostling a sliding bevel and a small protractor to get readings on angles, and then transferring those angles to his miter saw, Shapiro came up with the idea of a tool that would do both.
He worked out some of the kinks with wood prototypes before approaching Starrett to develop and manufacture the tool...