5 SIZE DRILL SET: Make clean cuts with 15mm, 20mm, 25mm, 30mm and 35mm drill bits. Suitable for a variety of occasions, punching on wood products, plastic products, wood and plywood. (Please do not drill into metal)EXCELLENT PERFORMANCEThe head is designed with an arc shape, which can eliminate debris and has high working efficiency. The cutting edge is sharp, the positioning is precise, the hardness is high, the precision is high, and the cutting is stable. The drill bit can drill a clean flat bottom hole without chipping.HIGH QUALITYHigh quality alloy blades, hardened, tempered and carbon HSS steel frame make the blades sharper and more durable. More fluid and less noisy. The knives are painted, waterproof and anti-corrosion.WOODWORKING TOOLSSuitable for making holes in wood. Precision grinding is suitable for mass use and easy to resharpen. They can easily enlarge existing holes and can drill any arc. , drawers, plastic products, wood, plywood, etc. Suitable for pistol drills, bench drills, vertical drills, hand-held electric drills, vertical electric drills and moving belt magnetic drills, etc.Dependable, quality toolsThe versatile bits included in this set are built with tough high carbon steel to cut a variety of materials. They cut extremely smooth and clean flat-bottomed holes in all wood species, including thin woods or veneers. 1"), 30mm1-3/16"), 35mm1-3/8")Precautions: Be sure to put on appropriate safety items for protection. Keeping cool or discontinued use will significantly prolong the life of the drill High performance and reliable quality promised by Flintronic TIPS: Cannot be used to cut metal holes Before drilling, make sure there are no nails or other objects in wood to prevent damage to Forstner bits.