Combined angle detector, 300 mm detachable ruler

Precise angle marking: The combination semicircular angle finder has clear etched scales for accurate measurement from 0 to 180 degrees and marking of straight edges on woodworking setups.
Adjustable 0-180 degree range: The 180-degree protractor adjusts from 0 to 180 degrees for miter cuts, bevel cuts, and general angle setting for cutting and framing tasks.
Aluminum alloy body: The semicircular angle finder uses a lightweight aluminum alloy with clear etched scales for rust and wear resistance in shop and jobsite conditions.
Dual-button locking: The two safety buttons allow you to quickly set and securely lock the removable ruler in place for stable and consistent measurements on angle cuts.
Portable detachable design: The semicircular protractor includes a removable ruler and a compact 120 x 80 mm protractor body for easy storage and use on construction sites or in workshops.