The Osborne Cutter 4100 is a hand-operated eyelet hole cutter designed specifically for creating clean, precise holes for turn buttons and other fasteners on marine covers, auto tops, awnings, and canvas products. Made from durable steel with sharp cutting edges, this fabric hole cutter saves time by efficiently punching through multiple layers of materials like canvas, leather, rubber, and plastics. Ideal for fabricators and manufacturers working with upholstery, marine canvas, and outdoor fabrics, it ensures consistent hole sizes for reliable fastening using turn buttons, snaps, grommets, and dot fasteners. This portable marine fastener tool supports improved workflow while enhancing the finish of boat covers, awning hardware, and outdoor living setups.