
( Brand: Manufacturer Varies ), ( Type: Countersink-bits ), ( Material: High Speed Steel ), ( Application: Heavy Duty For Aluminum, Alloy ), ( Manufacturer Part Number: 21ML39 ), ( Country Of Origin: China ), ( UPC: 190735767252 )
Review MANUFACTURER VARIES Countersink Set Pc Fl Deg Hss
Introducing our 21-piece countersink set with a flange angle of 82 degrees, all made from high-speed steel (HSS) for superior durability and performance. This versatile set is perfect for creating countersunk holes in various materials, including wood, metal, and plastic, ensuring a secure and neat finish for your projects.
Each countersink in this set comes with a unique size, ranging from M1.6 to M12, providing an extensive range to accommodate various fasteners and applications. The 82-degree flange angle is ideal for applications where clearance is a concern, such as when installing screws close to edges or in confined spaces.
The high-speed steel construction guarantees excellent wear resistance and edge retention, ensuring that these countersinks can handle the demands of repeated use in various materials. Their precision-engineered design ensures that they create perfectly sized and positioned countersinks every time, reducing the need for additional filing or adjustments.
These countersinks are easy to use, simply select the appropriate size for your project, secure it in your drill or driver, and apply gentle pressure as you drill the hole. Their countersunk design allows screws to be recessed below the surface of the material, creating a smooth, flush finish that is both functional and aesthetically pleasing.
In summary, this 21-piece countersink set with a flange angle of 82 degrees and high-speed steel construction offers a comprehensive solution for creating countersunk holes in various materials, providing a neat and secure finish for your projects, and the extensive range of sizes ensures that you have the right tool for any application.
Pros and Cons of Buying a 21mm x 39 Countersink Set with a Flange Angle of 82 Degrees, HSS
Introduction:When it comes to drilling and fastening, having the right set of tools can make a significant difference in the outcome of your project. One such tool that is essential for such tasks is a countersink set. In this article, we will discuss the pros and cons of buying a 21mm x 39 countersink set with a flange angle of 82 degrees made of High Speed Steel (HSS).
Pros:1. Versatility: This countersink set is suitable for drilling holes in various materials, including wood, plastic, and metal. The HSS material ensures that the bits last longer and retain their sharpness for an extended period.
2. Flange Angle: The 82-degree flange angle allows for the heads of the screws to sit flush with the material's surface, creating a professional-looking finish.
3. Size Range: The set includes 39 different sizes, which provides a wide range of options for various applications.
4. Cost-Effective: Buying a set rather than individual bits can save you money in the long run.
Cons:1. Size Limitations: While the set offers a wide range of sizes, it may not include every possible size that you might need for your project.
2. Requires Specific Torque: To ensure proper seating of the screws, it is essential to use the correct torque when installing them. Using too much or too little torque can result in damaged threads or stripped material.
3. Manual Operation: The countersink set is a manual tool, which means it may require more effort and time to complete the task compared to power tools.
Conclusion:In conclusion, a 21mm x 39 countersink set with a flange angle of 82 degrees, made of HSS, is a versatile and cost-effective tool for various drilling and fastening applications. However, it does have some limitations, such as the need for specific torque when installing screws and the lack of every possible size in the set. Ultimately, the decision to buy this countersink set depends on the specific requirements of your project and the resources you have available.
Recommendation:If you are looking for a high-quality countersink set for general-purpose use, this 21mm x 39 countersink set with a flange angle of 82 degrees, made of HSS, is an excellent choice. It offers a wide range of sizes, is suitable for various materials, and is cost-effective compared to buying individual bits. However, if you require a specific size not included in the set or need the efficiency of power tools, you may want to consider alternative options.
part # 21ml39 price
- $81.94
specifications drillnubbin:
- brand: Manufacturer Varies
- type: Countersink-bits
- material: High Speed Steel
- application: Heavy Duty For Aluminum, Alloy
- manufacturer part number: 21ML39
- country of origin: China
- upc: 190735767252
payments drillnubbin:
- credit card: Discover
- other
- wallet: Apple-pay
shipping drillnubbin:
- transit: 3-7 Days
- type: Fixed
- cost: $0.00
- class: Standard
- carrier: UPS
- service: UPS Ground
seller drillnubbin:
- rating: 99.6%
- # reviews: 148161
returns drillnubbin:
- method: Money back
- time: 30 Days
- paid by: Buyer
- policy: Returns Accepted
offer drillnubbin:
- started: February 2, 2026
- sold: 0
- options: Ship-to-home
- quantity: 94
- availability: In Stock
general drillnubbin:
- condition: New
- Tools Workshop Equipment > Power Tool Air Tool Accessories > Drill Bits
Manufacturer Varies 21ML39 Is Similar To:
- Manufacturer Varies 35936 Triple Groove Security Bit Sae 1/4 Inch (50% similar) $26.99. (December 19th, 2025)
- Manufacturer Varies 67499 Wide Load Banner 18 In Height 84 Width (48.8% similar) $40.42. (January 12th, 2026)
- Manufacturer Varies 5pxj4 Hand Tap Drill Bit Set 18-piece High Speed Steel (48.2% similar) $131.16. (January 28th, 2026)
- Manufacturer Varies 50079 12 Mil Tarp Black (47.2% similar) $44.67. (February 10th, 2026)
- Manufacturer Varies 21mk99 Countersink 1 Fl 82 Deg 3/4 Hss Uncoated (78.5% similar) $21.04. (April 11th, 2026)
- Manufacturer Varies 35933 Triple Groove Security Bit Sae 1/4 Inch (50% similar) $25.37–$34.12. (April 15th, 2026)
- Manufacturer Varies 21ml18 Countersink 6 Fl 82 Deg 1 In Hss (85.2% similar) $35.83. (May 10th, 2026)
- Manufacturer Varies 87862 Mini Mounted Point 5/16 Inch Dia. Ao (56% similar) $11.25. (May 16th, 2026)
- Manufacturer Varies 21ml04 Countersink 1 Fl 82 Deg 1/4 Hss (84.3% similar) $40.42. (May 24th, 2026)
