Drilling kits used by professional carpenters for easyDrill perfectly matched holes【Innovative three-blade design】Designed as three blades for layered cutting, the cutter set for metal canFor cutting, resistance to lessAnd chip evacuation is smoother. It can extend the service life.【Fast cutting】The teeth of the metal cutter set are designed as front and rear low upper tooth profile and with three blades, which make it more efficientThan drilling flat teeth. It is widely used in home DIY, auto parts, woodworking, professional machinery repair, etc.【Top Quality】Made of YG8 tungsten carbide stainless steel, Titanium carbide tooth is sharp, anti-corrosion and durable. Ideal for handheld electric drill, stand motorized drill, and mobile ribbon type magnetism drill. The wood can be drilled approx. 20mm depth and 5mm For stainless steel.【Easy Operation】 Center for the first timePenetrateMaterial and takes it as a centerExactlyOpen the hole. The spring design of the centering drill controls the amount of feed and avoids sudden feed and damage to the drill bit.【Multifunctional Tools】The carbide end mill is widely used in stainless steel plate, hard metal, iron, mild steel, alloy steel, aluminum, FRP and plastic for drilling holes. Ideal for installing Door and Cabinet LocksOr drilling larger diameter holes through desks, etc. (Tip: Not recommended for tile, glass, concrete, stone.)Material Type: High Speed SteelMaterial: AlloyColor: SilverLength: 65-70mmHandle Size:10mmOuter Diameter Size:16mm, 18mm, 20mm, 22mm, 25mm, 30mm, 35mm, 40mm,45mm, 50mm, 53mm, 53mmFeatures:Each edge is part of the cutting characteristic, so that the hole is not easy to produce the phenomenon of fallingStainless steel plate, steel, casting, aluminum alloy, iron and other types of drilling metal plateChip removal, excellent performance, sharp edge, wear resistanceNote: This product is not easy to cut relatively thin metal material, can be cut into 2-5mm stainless steel plate, and metal platele; 15mm Package Included:1X Hole Drill Bits