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Types of Drill Bits

WOOD types of There is Dill bits MASONRY a large diversity of drill bits available but not all of them are the same. They come in different shapes and are made from different materials which correspond the given task. GLASS METAL WHY IS IT IMPORTANT TO CHOOSE THE RIGHT DRILL BIT? Well the answer is simple, you will ensure that the hole has smooth edges and none of the equipment will be damaged in the PLASTIC process. PORCELAIN MATERIALS? Obviously, selecting the right drill bit, to a large degree, depends on the material that will be drilled. High Speed Steel (HSS) Bits: This is a general purpose drill bit. It is also known as 'twist' drill bits and they are most common ones among all types. Titanium Nitride HSS Bits: These drill bits run cooler, drill smoother and last up to three times longer than standard drill bit set. They are coated with titanium nitride. 2 Cobalt HSS Bits: They are made from cobalt steel blended with a fairly large percentage of cobalt which makes the drill bit very hard and resistant to abrasion. 3 #STAINLESS_STEEL #CASTIRON #CAST_STEEL #BRONZE Reduced Shank HSS Bits: These drill bits have the precision crafted from premium high speed steel. They are specially designed to fit drills with chucks 3/8" and larger. 4 HSS Rivet Bits: Rivet bits are specifically designed for drilling rivet holes. Usually they have flutes on both ends and are made to drill shallow holes through thin metal. 5 #THIN_METAL Brad Point (Wood) Bits: These bits sometimes come with depth stops, or small rubber rings that fit around the bit and allow you to choose the depth you would like to drill to. Masonry Bits: Used on hammer drills and designed for a variety of masonry surfaces - bricks, concrete, stone. These bits often have tips that are made of extra- hardened material. 7 #BRICKS #CONCRETE #STONE Multi-Purpose Bits: These bits have a special diamond ground tungsten-carbide tips and therefore can be used in both rotary and hammer drill mode. 8 Spade Bits: Also known as flat bits, they are designed for rough and ready drilling when the speed rather than the neatness of the hole is important. Auger Bits: The design of the auger means that it requires torque rather than a downwards force to move the bit through the wood. 10 Forstner Bits: Two types of forstner bits exit: those with a continuous rim which are the best for small 11 holes; and those with a saw-tooth rim which are better for larger holes and produce rough holes. Countersink Bits: They are available with or without pilot drills and have the ability to cut neat conical holes for countersink style screws. 12 Drill/Countersink Bits: These bits are the combination of a High Speed Steel drill bit and countersink bit. They represent the best possible solution for holes made for countersink-head screws. 13 #HARD_WOOD #SOFT_WOOD Self Centering Bits: This drill bits end is placed in the hardware's countersunk holes and it mechanically aligns itself to the hole center. 14 Spear Point (Tile and Glass) Bits: These drill bits have tungsten-carbide tips that are spear shaped. They can penetrate a tile or a piece of glass before enlarging the hole to the diameter of the tip's base. 15 #CERAMIC #PORCELAIN #GLASS Diamond (Tile) Bits: When using these you must commence the drilling at a 45 degree angle to stop the drill bit from slipping. As you continue to drill you can slowly straighten the drill. 16 #PORCELAIN Special Direct System (SDS) Bits: An SDS drill bit is thought to provide more efficient drilling and hammering action than a regular hammer drill bit does. 17 #BRICK #GRANITE #MARBLE Step Drill Bit: Step bits have a staircase profile that runs from a narrow point to a wider base in a nearly conical shape. These are used for making holes in soft materials or for enlarging existing holes. 18 Plug Cutting Bit: Plug cutters are used for making wooden plugs. They come in a range of sizes (extremely useful for cutting plugs to conceal screw heads or to replace a knot or other fault in a wooden surface). 19 Saw Bit: Saw Bits have a High Speed Steel drill bit points at the first 15mm or so, but they feature shafts with abrasive patterns. 20 www.mydrillpress.com

Types of Drill Bits

shared by danielGreek on Nov 10
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There is really a great variety of drill bits which can make your search for the right one a bit overwhelming. Standard bits are generally made for wood, metal, or masonry. As long as one remembers th...

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