Kadimendium 5Pcs Twist Drill Bit Extra Long Straight Shank Speed Steel Spiral Drill Bit Tool 150mm Length 2-5mm Diameter for Wood Plastic Aluminum Alloy Hardened Metal

HARDENED STRUCTURE: Classic HSS construction for capability and durability.The cutting edge is hardened and honed for sharpness, chatter-free design with staggered cutting teeth ensure the precise countersinking and hole smooth clean. HIGH EFFICIENCY: 2 flutes form helps clear chips and debris away from the bit, decreasing friction and heat for a faster, cooler drilling process. SPECIFIC DESIGN: Extra long cutting edge allows you using these bits to drill deep holes.Sharp twisted drill bits will make the drilling easier and more effortless BASIC SPECIFICATION: Type: Twist drill bit .Diameter: 2mm, 3mm, 3.5mm, 4mm, 5mm .Length: 150mm~160mm,each package includes 5 drill bits WIDE APPLICATION: This set includes 5 pieces drill bit in different sizes of the most popular drill bits.They are great for most drilling jobs and materials such as aluminum, wood, plastics