Fuller 600 x 400mm Rafter Square 600x400mm Silver SKU: 112512 MODEL: 312-2002 Error. try again later You've successfully joined the club $ 19 .93 each Available on orders $50 to $1500. More info × Mitre 10 Variants A high quality rafter square for marking angles to cut rafters. Large 600 x 400 size for large-scale squaring. Features and benefits Metric markings.