【Heavy Duty】VNW rafter square made of precise and durable CNC-machined aluminum alloy. Good oxidation resistance, not easy to break, each triangle ruler is thickened, corrosion-resistant and high hardness. 【Heavy Duty】VNW rafter square made of precise and durable CNC-machined aluminum alloy. Good oxidation resistance, not easy to break, each triangle ruler is thickened, corrosion-resistant and high hardness. 【Permanent scale】The rafter square finishing features low glare and protective powder coated. It has permanent deep markings and white graduations for max Readability any lighting. 【Multi-function】It Functions as a rafter square for measuring and cutting roof rafters. This carpenter square is used as a try square, miter square, protractor, and saw guide in various carpentry and woodworking tasks 【Convenient and comfortable design】VNW rafter square is convenient to hang and store when not in use with humanized design. The edges and corners of each triangle are polished by special craftsmanship, so that it is smooth and does not hurt your hands. VNW 7inch Rafter Square with Carpenter Pencil, 1/8" Precision Heavy Duty Aluminum Woodworking Rule,Triangle Ruler Measuring Layout Tool