Adotools 36mm diameter annular cutter – a reliable and high-quality choice sourced from Japan. With a service life of up to 1,000 holes and a fast cycle time of just 45 seconds per hole, this product ensures maximum productivity.
Specifically, the cutter is precision-engineered to meet demanding drilling requirements across a wide range of workpiece materials.

1. Advantages of the 36mm Annular Cutter
Below are the standout features exclusive to the Adotools 36mm annular cutter (magnetic drill bit):
- Exceptional Durability & Reliability: Adotools cutters are engineered for high performance on steel, offering a tool life of 500 to 1,000 holes. This makes them an indispensable tool for steel structure fabrication and shipbuilding industries.
- Japanese Quality & 1-to-1 Warranty: Manufactured in Japan with a commitment to a 1-to-1 replacement warranty for any manufacturing defects. These cutters ensure consistent quality across various steel thicknesses, providing users with absolute peace of mind.
- Time & Cost Efficiency: The Adotools 36mm cutter optimizes productivity at a competitive price point. With a drilling cycle of just 45 seconds per hole, it is the ideal solution for projects requiring fast turnaround times.
- Ergonomic & Advanced Design: Featuring sharp carbide-tipped teeth (TCT) and a triple-edge cutting geometry, the design ensures deep penetration and smooth chip evacuation. This significantly reduces operator fatigue while boosting labor efficiency and overall productivity.
- Unbeatable Value: Adotools provides the best value-to-cost ratio, with quality that rivals any top-tier brand. We offer a 3-day product trial—please contact us for professional consultation.

Adotools carbide annular cutters are powerful and versatile, capable of machining specialized materials such as:
- Steel and Alloy Steel: From mild steel to hardened steel, Adotools cutters perform exceptionally well on steels with hardness up to 40 HRC.
- Stainless Steel and Cast Iron: Widely used in industrial sectors, these cutters can machine stainless steel and cast iron with hardness up to 30 HRC.
- Specialty Materials (Inconel): Adotools cutters are also capable of machining Inconel – a high-performance superalloy – with hardness reaching 30 HRC.
Adotools annular cutters have proven to be an efficient solution for various industries, including steel structures, beam fabrication, shipbuilding, automotive, and more.
2. Technical Specifications of 36mm Annular Cutter
Below is the technical specification table for the Adotools annular cutter:
| Brand | Adotools |
| Product Code | ADT-TCT-CD50220 |
| Material | TCT (Tungsten Carbide Tipped) |
| Diameter | 36 mm |
| Length (Depth of Cut) | 50 mm |
| Carbide Teeth Geometry | Triple-edge cutting (3-edge grinding) |
| Shank Type | Universal Shank 19.05mm |
Additionally, the cutting teeth can be reground to maximize cost savings during use.
3. After-Sales Service for Adotools Annular Cutters
Adotools provides a robust after-sales policy for our annular cutter products:
- 3-Day Free Trial: Test our annular cutters for 3 days to ensure the product meets your specific requirements.
- 1-to-1 Replacement Policy: If the product fails to meet quality standards, we will provide an immediate replacement.
- Express Delivery: Fast and convenient shipping services to ensure you receive your tools without delay.
- Free Consultation: Adobus offers expert advice on tool selection and optimal drilling techniques.
- Technical Support: Our Adobus team is ready to assist you in selecting the right product and providing the appropriate cutting parameters.
Contact us today to register for your product trial!

4. Tips to Extend Annular Cutter Tool Life
To maximize the service life of your annular cutters, please adhere to the following guidelines:
- Handle with care: Avoid dropping the cutter to prevent structural damage or chipping of the cutting edges.
- Proper Storage: Store tools in their original cases and keep them away from direct sunlight to ensure better preservation and longevity.
- Corrosion Protection: Apply anti-rust oil and clean the tool thoroughly after each use to maintain peak performance and prevent oxidation.
- Tooth Maintenance: Regularly clean the carbide-tipped teeth to avoid buildup and prevent premature wear during long-term use.
- Cost Efficiency: Following these maintenance steps helps significantly reduce tool replacement costs.
Additionally, keep these maintenance tips in mind for your magnetic drill press:
- Wipe the cutter clean and store it in a dry environment to prolong its lifespan.
- Perform periodic inspections and ensure the machine is not operated under overload conditions.
Contact us now to place your order and receive a free consultation on the right product codes and optimal application methods. Adobus is committed to delivering superior quality and industrial performance. Don't miss this opportunity—call Adotools today!












