Carbide four-edged crossdrill, sharping and long-lasting, fast drilling, versatile and accurate hole punching. YG8 alloy drilling edges, high toughness, abrasion resistance, high density hardness, and nice adaptability. Widened spiral texture, smooth chip removal, faster chip removal when operating and using. Hexagonal drill shank with high compatibility, suitable for lithium drill, electric drill, table drill and other power tools on the market. Features: Carbide four-edged crossdrill, sharping and long-lasting, fast drilling, versatile and accurate hole punching. YG8 alloy drilling edges, high toughness, abrasion resistance, high density hardness, and nice adaptability. Widened spiral texture, smooth chip removal, faster chip removal when operating and using, and reduced damping feeling of the drill. Hexagonal drill shank with high compatibility, suitable for lithium drill, electric drill, table drill and other power tools on the market, ready to install and use, easy to operate. The drill bit is suitable for a variety of materials, such as foam brick, aluminum alloy, wood type, bubble brick, concrete, plastics, red brickd etc. Multiple uses, for avoiding the burning of the drill bit, when drilling on tile, glass tile, marble, glass and other materials, it needs to be operated with water all the time. Specifications: Name: Drill Bit Set Material: carbide alloy 5mm: Drill diameter: 5mm Drilling depth: 45mm Shank diameter: 6.35mm Total length: 100mm Weight (piece): 16g 6mm: Drill diameter: 6mm Drilling depth: 65mm Shank diameter: 6.35mm Total length: 100mm Weight (piece): 18g 8mm: Drill diameter: 8mm Drilling depth: 75mm Shank diameter: 6.35mm Total length: 105mm Weight (piece): 24g 10mm: Drill diameter: 10mm Drilling depth: 85mm Shank diameter: 6.35mm Total length: 115mm Weight (piece): 31g Package size: 135 * 60 * 22mm / 5.31 * 2.36 * 0.87in Package weight: 230g / 8.11ounce Packing List: 2 * 5mm Drill Bit 4 * 6mm Drill Bit 2 * 8mm Drill Bit 1 * 10mm Drill Bit 1 * 12mm Drill Bit