Compound sliding bevel square

摘要: An apparatus for measuring compound angles. This makes use of the standard T-bevel square, which is capable only a single angle. The invention angle blade with split collet joint. attaches by replacing bolt fastening means attached to joint invention. secures both and square blade. perpendicularly main body moves in 360 degree radius parallel T-bevel. rotation approximately 180 relative combination allows measurements perpendicular askew angles blades are fixed same action.