【DRILLING CUTTING HOLES】: Suitable for pillar drills, pistol drills, vertical drills, hand-held electric drills, pedestal drills, and magnetic belt drills for mounting ball ends on doors and drawers; drilling on wood, plastic, and plywood products. 【PRECISION DESIGN】: The head provides visibility and stability during operation. The center spur on each bit ensures precise drilling and prevents walking and wobbling during operation, creating perfectly round and accurate holes. 【TITANIUM ALLOY STEEL】: Constructed with titanium alloy steel for long-lasting durability. The high-speed steel Forstner bit drills overlapping, angled, and pocket holes in all types of wood, easily drilling hinge holes, cylinder holes, computer desk threads, and cabinet fixings. 【19 DIFFERENT DRILL BITS】: Make clean cuts with a 7cm shank: 10mm, 12mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm, 24mm, 25mm, 26mm, 28mm, 30mm, 32mm, 35mm, 40mm. Your sixteen bits can be easily stored between jobs.