+91 8777212335

info@genuineent.in

81, Netaji Subhas Road, 3rd Floor, Room No. 306,
Century Plaza, Kolkata-700001

+91 8777212335

info@genuineent.in

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Annular-1

Annular Cutter

+91-8777212335

Short Description

Drilling a large hole through structural steel with a standard twist drill takes time and a lot of torque, mostly because the drill is removing material from the entire circle at once. An annular cutter takes a different approach, cutting only around the outer ring of the hole and leaving a solid slug of metal in the center, which pops out once the cut is complete. Because it removes far less material per pass, it drills faster and needs a fraction of the torque a twist drill would demand for the same diameter. Used with a magnetic drill press, this cutter is a familiar sight on steel fabrication sites, structural steel erection, and any job where clean, accurate holes need to go through thick plate quickly.

  • Material: High-speed steel (HSS) or carbide-tipped cutting edge
  • Grades: M2 and M35 HSS grades, with tungsten carbide tips for harder materials
  • Shank Type: Weldon shank or universal fitting depending on drill machine compatibility
  • Size Range: Diameters typically from 12mm to 100mm, with custom sizes available
  • Cutting Depth: Standard, deep, and extra-deep cutting depths depending on plate thickness
  • Coating: TiN or TiAlN coating options for extended tool life
  • Standards: Manufactured in line with common Weldon shank and cutting geometry conventions used in the industry

Key Features

  • Ring-shaped cutting edge that removes only the hole's outer material
  • Leaves a solid center slug for fast, easy ejection
  • Requires significantly less torque than a standard twist drill
  • Available in high-speed steel and carbide-tipped variants
  • Compatible with magnetic drill presses and portable core drills
  • Faster cutting speed on thick steel plate and structural sections
  • Produces clean, burr-reduced holes with minimal heat buildup
  • Multiple cutting depths available for different plate thicknesses

Applications of Annular Cutter

  • Structural steel fabrication
  • Beam and column drilling for bolted connections
  • Bridge and heavy steel construction
  • Shipbuilding and marine steel work
  • Pipeline flange drilling
  • Rail and railway component fabrication
  • Wind turbine tower assembly
  • Pressure vessel manufacturing
  • Oil and gas structural steel work
  • General metal fabrication drilling

Advantages of Annular Cutter

  • Drills large diameter holes far faster than twist drills
  • Requires less machine torque, reducing strain on the drill
  • Produces cleaner, more accurate holes with less burring
  • Reusable cutting edges reduce tooling cost per hole
  • Handles thick steel plate with minimal heat generation
  • Available in coatings suited to high-volume production drilling

Why Choose Genuine Enterprises

Steel fabrication schedules often depend on how quickly holes can be drilled through thick plate, and a cutter that dulls too fast or wanders off center ends up costing more time than it saves. We test cutting edge sharpness and shank fit across every batch, since even a slight shank tolerance mismatch causes vibration and premature wear on the drill machine itself. Structural steel fabricators working on tight project timelines have noticed a real difference in cutting speed and edge life since switching to our stock.

 

Steel fabrication units researching an annular cutter bits supplier in India usually want fast cutting speeds without sacrificing hole accuracy, and that balance is what we focus our quality checks around. We also maintain a wide diameter and depth range in stock, since project drawings rarely call for just one hole size. Getting the shank fit right for a specific drill machine often matters just as much as the cutting edge itself.

1.What is an annular cutter used for? 

It's used to drill large, precise holes through steel plate and structural sections, commonly with a magnetic drill press.

2. Why does an annular cutter need less torque than a twist drill? 

It only cuts the outer ring of the hole rather than the entire cross-section, leaving a solid center slug and removing far less material overall.

3. What thickness of steel can this cutter handle? 

Cutting depth options range from standard to extra-deep, allowing the cutter to handle various plate thicknesses depending on the model chosen.

4. Are there annular cutter bits dealers in India who stock a wide size range? 

Genuine Enterprises stocks a broad range of annular cutter diameters and depths for structural and fabrication work across India.

5. Can the cutting edge be resharpened? 

Some HSS variants can be resharpened a limited number of times, while carbide-tipped versions are generally used until the edge wears out.

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