Best Counterbore Step Drill

Diamond Drill Bit, 5Pcs Hole Opener Drill Bit Electric Power Tool for Vitrified Brick/Stone/Marble/Granite/Concrete/Glass/Ceramic Tiles(12)

  • Universal Shank: With universal shank type, can be installed on lithium electric drills, hand drills, bench drills and other equipment..
  • High Speed Steel: These drill bits are made of excellent high speed steel, with HRC58‑65 hardness, wear resistant and durable..
  • 4Pcs Drilling Tools: Including 3pcs step drill bit and a center punch, commonly used for woodworking grooving, drilling and cutting, etc..
  • Multiple Specifications: The step drill can be used to drill holes of different specifications without changing the drill bit, which is convenient and practical..
  • Applicable Plates: Burr free reaming, suitable for stainless steel, carbon steel, iron plate, aluminum plate, plastic plate, etc..
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Preamer 6-60mm HSS 4241 Large Spiral Groove Metric Step Drill Set Cone Drill Bit Woodworking Metal Hole Cutter Tool Drilling Bit

  • The drills twice as fast as the average step drills and can drill acrylic, PVC, wood, aluminum and iron sheets up to 0.2’’ in thickness. Our drill bit is bigger in size so it can drill holes with larger dimensions.ture.
  • cutting blade design makes for cutting faster,automatic deburring from hole when drilling..
  • Ideal For DIY, Home and General Building/Engineering Using..
  • The step drill bit is made from upgraded high speed steel characterized by well-balanced toughness, wear resistance and red hardness properties for better and faster hole -drilling performance. The coating makes the drill bit more durable so that it can last for years with uncompromised quality..
  • 6-60mm(12 steps:6,10,15,20,25,30,35,40,45,50,55,60mm)Shank Diameter: 13mm.Material: HSS 4241.
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Titanium Step Drill Bit Set Unibit Drill Bits Unibits Set Uni Bit Step Bit Sets Stepped Drill Bits For Sheet Metal Hole Cutter Plastic Plexiglass Acrylic Impact Driver Unabit Up Stepper Cone Hex Shank

  • SET INCLUDES: (3) Titanium Step Drill Bits (Hex Shank), (1) Locking Quick Change Bit Holder Drill Adapter (Hex Drive), (1) Fabric Case.
  • The Step Bits in The Unibit Set All Have Quick Change 1/4” Hex Shanks (COMPATIBLE WITH DRILLS & IMPACT DRIVERS).
  • The Included Hex Drive QUICK CHANGE BIT HOLDER ADAPTER Lets You Easily Change Bits in Your Drill (it Fits The Unibits, Along With ANY Type of Hex Bit!).
  • Great For Drilling MULTIPLE SIZE HOLES in Thin Metal, Sheet Metal, Plastic, Plexiglass, Acrylic, Lexan, Plywood, PVC Pipe, Conduit, Polycarbonate, Fiberglass, And Much More!.
  • Step Drill Bit Sizes: 1/8” | 5/32” | 3/16” | 7/32” | 1/4” | 9/32” | 5/16” | 11/32” | 3/8” | 13/32” | 7/16” | 15/32” | 1/2” | 9/16” | 5/8” | 11/16” | 3/4”.
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Drill America DEWCBR Series Qualtech High-Speed Steel Aircraft Counterbore 1/4 Shank Diameter 3/32 Pilot 2-3/8 Length 3/8 Size Pack of 1

  • High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance.
  • Round shanks allow use with a wide variety of toolholding systems.
  • Counterboring is the enlargement of a portion of a hole that has previously been formed.
  • The counterbor is a two-piece construction, having an integral shank and counterbore-cutter, and a pilot that is interchangeable, which provides flexibility in the use of the tool.
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Vankcp Countersink Step Drill Bit Set with Automatic Center Punch HSS Cobalt Titanium Unibit Drill bits for Carbon Steel, Iron Plate, Steel Plate,Metal Sheet, Aluminum Case (6pcs)

  • HIGH QUALITY AND WIDELY USE: The step drill bits are made from high speed steel , strong and durable can be used for stainless steel sheets, aluminum alloys, plastics and wood..
  • AUTOMATIC CENTER PUNCH : The center punch help you mark the center point that you want to drill.Make your work faster and easier..
  • THE MOST PROFESSIONAL TOOL: High speed steel provides a longer service life not easy to damage and the titanium coated cobalt will be better drilling better with heat, corrosion resistance and rust resistance, leaving a more accurate and smooth holes..
  • MEET YOUR DEMANDS: With the HSS step drill bits you can process different kinds of diameter holes, which greatly saves you a lot of trouble.Ideal for metal/wood/plastic countersunk . Suitable for home DIY and general construction/Engineering Use..
  • PACKAGE INCLUDING:High Speed Steel Step Drill bits,Automatic Center Punch, Aluminum Case, User's Manual, Ideal Gift for Men.
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DEWALT Driver/Drill Bit Set, Quick Change, 8-Piece (DW2730)

  • Quick and easy changes between drilling and driving.
  • Black oxide split-point drill bits start on contact.
  • Quick change mechanism for easy one-step loading.
  • Easy push forward for one-handed release.
  • Contoured finger grip for easy ergonomic use.
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CO-Z Step Drill Bits HSS 5PCS Titanium Step Drill Bit Set 50 Sizes in 5 High Speed Steel Unibit Drill Bits Set for Sheet Metal with Aluminum Case Multiple Hole Stepped Up Bits for DIY Lovers

  • Extreme Durability: Cobalt high speed steel drill bits along with the titanium coating ensures extreme durability, will stay new and shiny for years to come..
  • Different Sizes of Holes Can Be Drilled: Different sized shanks ensure compatibility with 1/4, 3/8 and 1/2 in. chuck sizes. You are capable to drill holes in different sizes which can meet your normal needs..
  • Smooth Drilling: Non-walking drill tip provides fast and smooth drills on steel sheets, aluminum sheets, wood board, plastic board etc. (the board must be smaller in thickness than the height of step drill bits)..
  • Use Center Punch to Mark the Spot: Please mark the spot that you are to drill for easier drilling and improved drill bits life..
  • Keep Your Step Drill Bits Well Organized: All the bits come in a well-organized case for easy transport and storage..
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CORTOOL Step Drill Bit HSS Spiral Groove Step Bit 1/4" to 2-3/8" Step Drill Bit for Metal Plastic Wood, 12 Sizes Multiple Hole Stepped Up Bit for DIY Lovers

  • ✅ The step drill bit is made from upgraded high speed steel characterized by well-balanced toughness, wear resistance and red hardness properties for better and faster hole -drilling performance. The titanium coating makes the drill bit more durable so that it can last for years with uncompromised quality..
  • ✅ The spiral dual-flute design prevents metal fillings from flying around and clears chips faster thus it can drill more smoothly without heating up..
  • ✅ The rapid strike tip drills twice as fast as the average step drills and can drill acrylic, PVC, wood, aluminum and iron sheets up to 0.2’’ in thickness..
  • ✅ CORTOOL drill bit is bigger in size so it can drill holes with larger dimensions..
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NEIKO 10173A Step Drill Bit Set for Metal and Wood, 5 Piece SAE, Spiral Grooved for Faster Drilling, Step Bits with 50 Total Step Sizes, Titanium Coated Unibits

  • PREMIUM STEP BIT: Each unibit is constructed of industrial high-speed steel with a titanium nitride coating for durability and strength to punch and drill clean holes in materials like plastic, aluminum, wood, copper, stainless steel, and other types of sheet metal..
  • STEP DRILL BIT FOR METAL: With a split point tip that accelerates cutting speed while preventing angled walking away from center line of bore, drilling holes in metal is fast, efficient, and clean..
  • SPIRAL DESIGN: The two-flute spiral grooved design deburrs chip, dust and debris for clearance and smooth cutting. With 50 step sizes combined, each hole made with these step bits will be precise..
  • QUICK-CHANGE: The 1/4-inch hex shank makes for easy, convenient, and quick stepper bit switches and is compatible with impact ready power tools..
  • INCLUDES: Each bit set comes with 5 drill bits of a combined 50 sizes: Range is from 1/8” to 1-3/8”..
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KSEIBI Step Drill Bit Set 5 Pieces Pack High Speed Steel Black Oxide M2 Multiple Hole 50 Sizes 1/8-1-3/8 inch SAE Standard Drill Attachment (KS-575105)

  • These HSS Double-Fluted Step bit kit provide faster cutting and drilling than single flute bits. The easy-to-read step markings and targets save time when drilling holes..
  • Drills clean, accurate large holes in these materials (up to 1-3/8in. diameter) hard sheet metal, ducts, steel, stainless steel, copper, brass, aluminum, plastic, plexiglass, wood, firewood, veneers, vinyl siding, acrylic, plasterboard, PVC pipe, , fiberglass and cast iron, Ideal for electrical, plumbing and HVAC contractors..
  • M2 high speed steel along with the black coating ensures extreme durability, will stay new and shiny for years to come. Different sized shanks ensure compatibility with 3-Flat Hex Shank - Prevents bit from slipping in the chuck while drilling holes 1/4, 3/8 and 1/2 in. chuck size..
  • Step drill bit can be used on electrical drill, cordless drill, or high impact drill press machine, combo set with durable ABS plastic organizer for easy and safe storage in your tool box..
  • Dual-flute design provides greater speed and control and optimized for cordless drills driver running at high speed.
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