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Types of drill bits and their uses1/6/2024 Step bits are unique drill bits that feature a stepped, conical design. They are generally used in handheld drills and come in different sizes to create different hole diameters. Spade bits are suitable for creating holes for wiring, drilling large-diameter holes for plumbing, and installing door locks. Because of this geometry, the bottom of the hole the spade bit creates is not smooth. They have a flat, paddle-shaped head with a pointy tip and two cutting spurs. Spade bits, also known as paddle bits, are made for drilling larger holes in wood and other soft materials, like plastic. Core drilling requires a tool called a core drill or coring tool. Like hole saws, core bits have a hollow center that allows them to remove a cylindrically shaped core from the drilled material.Ĭore bits are commonly used in construction and plumbing projects when installing pipes or conduits, or creating holes for ventilation systems. Core BitĬore bits are cylindrical bits that drill large, deep holes in masonry, concrete, and stone. They are available in various sizes to create different hole diameters. Hole saws are commonly used in woodworking and construction projects for tasks like installing doorknobs, cutting holes for pipes, and creating openings for electrical wiring. It consists of a cylindrical attachment with sharp teeth on the rim. The hole saw drill bit is designed to create large-diameter holes. They are available in various sizes and can be used with handheld drills or drill presses. Twist bits are suitable for drilling holes in wood, plastic, and metal materials. It features a spiral-shaped flute that helps remove debris quickly. The twist bit is the most-used drill bit and is versatile for various applications. Each bit’s geometry affects how it cuts, the holes it creates, and the techniques you must use to drill safely and efficiently. One way to categorize drill bits is based on their shape. Use our beginner’s guide to essential drill bit types to compare shapes and material compositions, and find the right bit for your needs. When you’re new to drilling, determining the right drill bit for your project can seem overwhelming. Masonry Drill Bits for Concrete and Asphalt.Number Sizes #1 thru #80 High Speed Drill Bits.Bellhanger Drill Bits – Long Reach Bits up to 72 Inch.End Mills – High Speed, Cobalt & Carbide.Wet Diamond Core Drill Bits for Concrete and Stone.Core Bits – Concrete, Masonry & Asphalt.Number Size #1 thru #60 M42 Cobalt Drill Bits.Large Cobalt Drill Bits 9/16 Up To 1-1/2 inches. Drill Bits for hardened Steels 42- 65 Rockwell.Acrylic-Drill Bits for Acrylics and Plastics.
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