Heavy duty brass flush mounted thumbscrews. Used for repeat angle cuts for stairs and rafters. Attaches to all standard framing and carpenter squares.

Easy attachment to any rafter square. Use for angle cuts on rafters, or stair stringers. Can also be used as security stops on window or door metal channels.

Made to clamp onto a framing or carpenter square for repeat cuts such as in stairway work. Speeds up repeated measuring applications. All brass construction. Pack of 2.