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MANUFACTURER VARIES 21ML04 Countersink Deg Hss 190735766903 1/4

21ml04 Manufacturer Varies Countersink 1 Fl 82 Deg 1/4 Hss

( Brand: Manufacturer Varies ), ( Type: Cutting Tools ), ( Material: High Speed Steel ), ( Application: For Cast Iron, Heat-treated Stee ), ( Manufacturer Part Number: 21ML04 ), ( Item Length: 0.086 ), ( Item Width: 0.032 ), ( Country Of Origin: China ), ( UPC: 190735766903 )

Review MANUFACTURER VARIES Countersink Fl Deg 1/4 Hss

Introducing the 21ml04 countersink flush set with a 82-degree included angle and a 1/4-inch shank size. This set is designed to provide a perfectly flush finish for your screws, ensuring a professional look for your projects.

The 82-degree included angle of this countersink set is ideal for most applications, making it a versatile choice for various fastening needs. It is specifically designed to create a recess for the head of the screw, allowing it to sit flush with the surface of the material.

Constructed from high-speed steel (HSS), this countersink is built to last. HSS is a durable material that retains its sharp edge longer than other materials, allowing for consistent and efficient cutting. The 1/4-inch shank size is a standard size, making it compatible with a wide range of drill chucks and drivers.

This set includes a single countersink bit, allowing you to easily and quickly create the recessed holes you need for your screws. The flush finish provided by this countersink set not only looks great, but it also helps to distribute the weight of the screw evenly, reducing the risk of the material cracking or splitting.

Whether you're working on a home improvement project, assembling furniture, or completing a repair job, this 21ml04 countersink flush set is an essential tool to have in your toolbox. Its high-quality construction and precise design ensure that you'll be able to achieve the best possible results every time.

In summary, this 21ml04 countersink flush set with a 82-degree included angle and a 1/4-inch shank size is a high-performance tool designed to create flush-finished screw holes. Constructed from durable high-speed steel, it is a versatile and long-lasting addition to any toolbox.

Pros and Cons of Buying a 21mm x 04 Countersink Flat 82 Degree 1/4 inch HSS Bit

Introduction:

This discussion will focus on the advantages and disadvantages of purchasing a 21mm x 04 countersink flat 82 degree 1/4 inch HSS bit. This type of bit is commonly used for creating countersinks in metal surfaces, enabling the installation of screws or bolts with a flush or slightly recessed head.

Pros:

1. Versatility: This bit can be used in various applications, including aluminum, steel, and other metal materials. Its 82-degree angle makes it suitable for creating countersinks for both Phillips and flathead screws.

2. Durability: High-Speed Steel (HSS) is known for its strength and resistance to wear and tear. This bit is expected to last longer than its carbon-steel counterparts, saving you money in the long run.

3. Efficiency: Using a countersink bit can help save time compared to using a hammer and a countersink tool. The bit allows for more precise and uniform countersinks, ensuring that the screws or bolts sit flush with the surface.

4. Quality finish: A well-made countersink bit can produce a clean, professional-looking finish. This is particularly important for applications where appearance is a concern, such as in automotive or aerospace industries.

Cons:

1. Cost: HSS bits, in general, tend to be more expensive than their carbon-steel counterparts. This may be a deterrent for some buyers, especially for smaller projects.

2. Requires specific drill bit holder: The 21mm x 04 countersink bit is a specialized tool. It requires a drill bit holder that can accommodate its specific dimensions. Make sure you have the appropriate holder before making a purchase.

3. Limited to certain drill sizes: This bit is designed to work with 1/4 inch drill chucks. If you have a different drill size, you may need to purchase a different bit.

Conclusion:

The 21mm x 04 countersink flat 82 degree 1/4 inch HSS bit offers several advantages, including versatility, durability, efficiency, and a quality finish. However, it also comes with some disadvantages, such as higher cost, the need for a specific drill bit holder, and being limited to certain drill sizes.

Recommendation:

If you frequently work with metal surfaces and require a countersink tool for various projects, investing in a high-quality 21mm x 04 countersink flat 82 degree 1/4 inch HSS bit could be a worthwhile investment. Its versatility, durability, and efficiency can save you time and money in the long run. However, if you only occasionally need a countersink tool or work with smaller projects, it might be more cost-effective to opt for a less expensive carbon-steel bit. Always ensure you have the appropriate drill bit holder and drill size before making a purchase.

part # 21ml04 price

  • $40.42

specifications drillnubbin:

  • brand: Manufacturer Varies
  • type: Cutting Tools
  • material: High Speed Steel
  • application: For Cast Iron, Heat-treated Stee
  • manufacturer part number: 21ML04
  • item length: 0.086
  • item width: 0.032
  • country of origin: China
  • upc: 190735766903

returns drillnubbin:

  • policy: Returns Accepted
  • paid by: Buyer
  • time: 30 Days
  • method: Money back

general drillnubbin:

  • Tools Workshop Equipment > Power Tool Air Tool Accessories > Drill Bits
  • condition: New

offer drillnubbin:

  • started: May 24, 2026
  • availability: In Stock
  • options: Ship-to-home
  • quantity: 22
  • sold: 0

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  • carrier: UPS

seller drillnubbin:

  • rating: 99.6%
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type: cutting tools, application: for cast iron, heat-treated stee, item length: 0.086, item width: 0.032, country of origin: china,
category: home & garden > tools workshop equipment > power tool air accessories > drill bits, material: high speed steel, sku: 11921432948959603,

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  • Offer #1: $40.42 price + free delivery = $40.42* total. Countersink, 82 Degrees , 1 1/4 in, High Speed Steel, Bright (Uncoated).FREE SHIPPING