Get smooth, professional results every time with these high-quality Forstner drill bits from TOUGH MASTER. They're made from durable C45 carbon steel with TCT cutting edges, giving them superior heat- and wear-resistance. Each Forstner bit in this 5 piece Forstner bit set is precision-engineered to stay ultra-sharp and remove maximum amounts of material effectively. Use the included depth stop to adjust the depth of the hole that you're drilling, from 15–45mm; you can also remove the depth stop altogether to drill to an unlimited depth. These Forstner drill bits have high-quality tungsten carbide cutting edges, guaranteeing precision and long service life. Use these TOUGH MASTER Forstner drill bits for reliable, professional results every time you cut round, flat-bottomed holes for hinges or drill overlapping holes. Easily transport and store your TOUGH MASTER Forstner drill bit set in its handy carry case, made from sturdy plastic; the case has moulded inserts to ensure that each Forstner bit in this 5 piece Forstner bit set has its own individual storage place to stay tidy, organised and protected from damage. These Forstner drill bits include 15mm, 20mm, 25mm, 30mm and 35mm diameter sizes, with two shank diameters to fit all major brands of drills. This TCT hinge cutter bit set also comes with 2 hex keys.