The Brown & Sharpe No. 312-604 is a premium 6-inch tempered stainless steel machinist rule. Known for its durability and precision, this classic tool is widely utilized in metalworking, inspection, and machining for highly accurate layout and measurement tasks.
Core Specifications
Length: 6 inches
Material: Spring-tempered stainless steel, ensuring the rule remains flat, resists distortion, and prevents rusting in shop environments.
Finish: Satin/chrome finish that reduces glare under shop lighting, improving legibility.
Graduation Style: 4R (Edge 1: 8ths and 16ths; Edge 2: 32nds and 64ths).
Typical Applications:
Direct length and depth measurements. Acting as a precise straight edge to draw or check for straightness on machined components.Setting up precision tools, calipers, and height gauges