5 drill sizes for versatile cutting - Sizes: 15 mm, 20 mm, 25 mm, 30 mm, 35 mm - Intended for perforation in wood products, plastic products, wood and plywood - Do not drill into metal Deep stop depth control and guiding action - Depth stop attached to the shaft limits drilling to 15 mm to 45 mm - Stop can be removed for unlimited depth - Guided through the circular edge to drill circular arcs in any direction - Curved head design helps debris removal and improves efficiency Carbide construction and drilling capability - Carbide: Made of titanium alloy steel for long-lasting durability - High speed steel Forstner drill bits drill overlapping, angled and blind holes into all types of wood - Suitable for hinge holes, cylinder holes, and threaded holes for computer desks and home cabinets Precision and stability design - Wing head provides visibility and stability during operation - Centring spur on each chisel guarantees accurate drilling and prevents walking and wobbling - Centring spur design yields perfectly round and accurate holes Typical applications - Cabinet and furniture construction: easy drilling of hinge holes, cylinder holes, and threaded holes for desks and home cabinets - Woodworking with plywood and plastic components requiring rounded pockets or blind holes - DIY projects around the home, including furniture assembly and mounting hardware