Multifunctional Design: Combine framing attachments with staircase measurement gage for accurate angle cuts. Versatile Compatibility: Designed for use with framing squares, speed squares, and rafter squares up to 0. inches thick. Engineering: Hex ensures alignment at various angles, guaranteeing measurements. Professional Grade: Streamlines workflow for stair builders with consistent alignment for framing solutions. Durable Construction: Made from anodized aluminum alloy, lightweight yet robust for -term use., Manufacturer: ANGGREK