Reviews Self Starting Step Drills

Matework M35 Cobalt Step Drill Bit Set Four Spiral Flute Step Bit 1/8 -7/8 Wear-Resistant TiAlN Coated 1/4 Hex Shank Unibit for Metal Wood Stainless Steel Plastic 3Pcs 20 Size

  • FOUR FLUTE STEP DRILL BIT - Ordinary step drills are prone to deflection during cutting, but four Flute step drill are more stable in cutting. The service life is twice as long as that of ordinary step drills, the drilling accuracy is significantly improved, and the cutting speed is faster when drilling, which has a unique effect on stainless steel drilling..
  • M35 COBALT HSS - M35 cobalt HSS can obtain high hardness (HRC 64-66), high red hardness and high wear resistance through proper heat treatment. Its toughness and bending strength are higher than ordinary high-speed steel, and it is better for hard materials..
  • TiAlN COATING - As a new coating material in the past two years, TiAlN coating has excellent characteristics such as high hardness, high oxidation temperature, good thermal hardness, strong adhesion, small friction coefficient, and low thermal conductivity..
  • 135°CUTTING ANGLE - The increased angle of the drill tip is more suitable for drilling hard materials than 118°. The larger the included angle, the smaller the self-wear and the larger the stress area..
  • TIPS - Due to high-speed rotation, the temperature of the drill bit will continue to rise. It is recommended to add cutting oil or spray water to cool down when working continuously, which....
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IRWIN Unibit 502T Step Drill Bit Set with Nylon Pouch Titanium Nitride Coated 3pc 15502

  • This IRWIN Unibit step drill bits feature single-flute cutting edges for greater control through steps.
  • These IRWIN Unibit step drill bits have a hex shank to help prevent slipping in the drill chuck.
  • IRWIN Unibit step drill bits use a nonskid, self-starting tip to minimize skidding and center punching.
  • Titanium Nitride coating is heat- and friction-resistant for extended cutting edge life.
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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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IRONANT Step Drill Bits 5PCS HSS Titanium Step Drill Bit Set 50 Sizes Step Bits for Metal with Aluminum Case

  • HSS Titanium Coating: The step drill has excellent sharpness and durability due to its high speed steel material and titanium coating.
  • 118° Split Point Tip & Dual-flute Design: increases cutting speed with self-centering and prevents walking, clears chips faster and allows particles to escape easily.
  • 50 Sizes in 5 Pcs: The step drill bit kit includes 5 standard pieces with totally 50 sizes for versatility, enough for your DIY needs.
  • Widely Application: Ideal for drilling holes in plastic, aluminum, iron and many other types of sheet metal (Not recommended for stainless steel).
  • Equipped with a well-organized case, make it more convenient for using and storing the step drills.
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MK Morse 116244-MKM 050326116244, multi, one size

  • Applicable Plates: Burr free reaming, suitable for stainless steel, carbon steel, iron plate, aluminum plate, plastic plate, etc..
  • 4Pcs Drilling Tools: Including 3pcs step drill bit and a center punch, commonly used for woodworking grooving, drilling and cutting, etc..
  • 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..
  • Multiple Specifications: The step drill can be used to drill holes of different specifications without changing the drill bit, which is convenient and practical..
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NordWolf 12-Piece Metric Step Countersink Cone Drills with 1/4 Hex Shank Multi Drill Saw & Automatic Center Punch Titanium HSS Set in Storage Box

  • 【Step Drills and Cone Drill】3 piece 5/9/14 step drills (4-12/20/32mm) and 1 piece cone drill (8-20mm). Laser marking of step size provide convenient and accurate drilling.
  • 【Countersink Drill Bits】6 piece countersink drill bits: 6.3, 8.3, 10.4, 12.4, 16.5, 20.5mm - 90° point, three cutting edges, ideal for deep countersinking.
  • 【High Quality】All drills are HSS Titanium coated, come with 1/4" (6.35mm) hex shank, and are precision ground, heat treatment, and hardened for consistently accurate drilling or enlarging holes into sheet & non-ferrous metals, wood and plastics.
  • 【Multi-Drill Saw & Center Punch】Multi drill saw (6mm) can be used in combination with drills, saws, rotary files, reamers and routers. Automatic brass center punch provides high impact spring-loaded strike when pressed against working surface.
  • striking force is adjustable by turning cap.
  • 【Ergonomic Storage Box】Insert hex shank into black plastic holder at 10°-15° first, then push head of product down to fix firmly. Box can be re-used to store other tools by taking out foam inlay.
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LESOLEIL Large HSS Spiral Step Drill Bit - 1/4" to 2-5/8'' Grooves Cone Drill Bit Titanium Coated for Drilling Aluminium Iron Sheets, Wood, PVC Hole Cutting

  • ,1/2", 19/32'', 3/4",1", 1-1/4", 1-3/8", 1-5/8", 1-3/4", 2'', 2-3/16'', 2-3/8'', 2-5/8''(Largest size)..
  • Unique Design - Tri-flatted shank fits into power tools (1/4, 3/8, 1/2 electric drills or bench drills)chuck securely and eliminates slip. And the three-flute sharp removes chips faster and prevents metal fillings from flying around, the large drill bit can work more smoothly without heating up..
  • Compatibility - The quick-action tip drills twice as fast as other average step drills and can drill acrylic, PVC, wood, copper, plastic, aluminium or iron sheets(Up to 0.2'' in thickness)..
  • Wide Usage - Suitable for home repairs and light jobs such as drilling holes in plastic, aluminum, copper, iron and many other types of sheet metal (NOT fit for steel or any other harder metal)..
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Barb Drill Bit, Tapered Hole Drilling 4-32mm Multiple Sizes HRC58-65 for Metal Plastic Wood Plates

  • High Speed Steel: These drill bits are made of excellent high speed steel, with HRC58‑65 hardness, wear resistant and durable..
  • Multiple Specifications: The step drill can be used to drill holes of different specifications without changing the drill bit, which is convenient and practical..
  • Universal Shank: With universal shank type, can be installed on lithium electric drills, hand drills, bench drills and other equipment..
  • Applicable Plates: Burr free reaming, suitable for stainless steel, carbon steel, iron plate, aluminum plate, plastic plate, etc..
  • 4Pcs Drilling Tools: Including 3pcs step drill bit and a center punch, commonly used for woodworking grooving, drilling and cutting, etc..
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IRWIN Step Drill Bit 3/16-Inch to 7/8-Inch Cobalt Alloy Steel 3/8-Inch Shank 10234CB

  • Cobalt Alloy Steel high speed steel for extended cutting edge life makes it ideal for drilling stainless steel.
  • Drills 12 different hole sizes, from 3/16" to 7/8" by 16ths.
  • SpeedPoint tip prevents "walking," gets fast starts, and eliminates the need for pilot/starting hole.
  • Single-flute cutting edge drills true round holes with smooth, clean finish.
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FEWELL HSS Step Drill Bit Set 3-Piece Set 29 Sizes M35 Cobalt Spiral Groove Titanium Coated Step Drill Bit for Drilling Plate Aluminum Metal Wood HoleSpecification

  • 【M35 Cobalt High Speed ​​Steel】The durable step drill is made of HSS M35 cobalt, and the surface is plated with cobalt，outstanding durability and sharpness. Effectively reduces the friction to ensure cooler running so as to prolongs service life..
  • 【HSS titanium coating】The surface is treated with a titanium alloy, which greatly improves the cutting performance of the drill bit, is more wear-resistant, and extends the service life..
  • 【Efficient Design】118°X split point tip and two-flute design increases cutting speed with self-centering and prevents walking, clears chips faster and allows particles to escape easily..
  • 【Total 29 Step Sizes】3 drill bits, 29 sizes, our drill bit set includes 3 standard step drill bits, capable of drilling 29 holes of different diameters, thus saving your time and effort..
  • 【Application】The drill step bit suitable for pistol drill or bench drill, cooling water to extend its service life. The appropriate drilling speed is 250-400 rpm. Compared with traditional drills, the impact is minimal and it is almost impossible to break..
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