Countersink Bit 90 Hsses of 2025
Best Choice1
Accusize Industrial ToolsAccusize Industrial Tools 90 Degree 6 Flute H.S.S. Machine Countersink, 8 Pcs, 0206-2016
Main highlights- Polished 6-flute countersink set
- One of each: 1/4'', 5/16'', 3/8'', 1/2'', 5/8'', 3/4'', 7/8'' & 1''
- Made of H.S.S. and precision ground
- Come with a styling plastic case
- Angle: 90 degree, 8 piece set
9.9Exceptional
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Value for Money2
Accusize Industrial ToolsAccusize Industrial Tools 9 Pc Single Flute H.S.S. Countersink Set, 90 Degrees, Ground, 0245-2027
Main highlights- One each of: 3/16'', 1/4'', 5/16'', 3/8'', 1/2'', 5/8'', 3/4'', 7/8'' & 1''
- Not intended for deep processing tasks like drilling; optimized for surface modifications.
- Made of H.S.S. and precision ground
- Fiited case
- Enhances tool life with coolant during machining, especially on cast iron materials.
- Engineered for 90° angle precision ground for burr-free deburring and countersinking.
- Comprises 9 H.S.S. countersinks: sizes 3/16", 1/4", 5/16", 3/8", 1/2", 5/8", 3/4", 7/8", & 1".
- Achieves superior results at low cutting speeds for quality finishes and tool longevity.
- 90 degree
- 9 PCS Set
9.8Exceptional
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3
VouyarVouyar Cobalt Steel Single End Countersink Drill Bit with Cobalt Coating Finish for Hard Metal Wood, 90 Degree M35 HSS, 6MM Round Shank, 9.7MM Body Diameter
Main highlights- The spiral flutes prevent chips from clogging, making your work more efficient.
- PRO compatibility for professional machinist and DIY enthusiasts: Round shank can be fitted with hand drills and bench drills. We recommend using bench drills for optimal results when working with hard alloys.
- M35 Cobalt HSS: Super tough, resistant to wear, high thermal threshold. Designed for tackling tough materials like stainless steel and other high-performance alloys. Please ensure sufficient lubrication and cooling in extensive uses.
- Cobalt coating helps with wear and thermal. Please be reminded that the countersinking performance will not be impacted even if coatings are worn down. The wear and tear of coating is normal and the performance relies on hardness of the countersink bit itself.
- 90 degree cutting angle, countersinks 2 - 5 mm
9.7Exceptional
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4
ChiloskitCountersink Drill Bit Set for Steel, 3 Flute 90 Degree HSS Chamfering Tool Bit for Metal Wood Woodworking Metal Working Tool Bit Set, Pack of 6pcs 1/4 1/2
Main highlights- [Wide application]: This counter sink bit Suitable for workpieces with hardness less than 45HRC, such as carbon steel, aluminum plate, carbon steel, thin iron plate, insulating plate, PVC plate, wood board, etc.(Not Great for Stainless Steel）
- [HSS 4231]: each metal countersunk drill bit is made from high quality HSS material, Chiloskit countersink drill bit set is excellent in heat, corrosion and rust resistance.
- [Efficiency]: this wood metal drilling bit has a one-piece design, which makes the chips generated during the chamfering process more convenient, and will not delay work efficiency due to tool blockage.
- [Ease of use]: The automatic through-hole chamfering cutter can quickly trim and chamfer both sides of the hole in a few seconds.including 6 most popular sizes: : 6.3mm(1/4''), 8.3mm(5/16''), 10.4mm(2/5''), 12.4mm(1/2''), 16.5mm(5/8''), 20.5mm(4/5'').Shank: round shank.Not recommended to use hand drills.
- Great gift for man DIYer . Don't settle for less - choose our countersink drill bit set for a superior drilling experience.If you are not satisfied withthe functions or any other reasons, just return it to us and we’ll be happy to resolve any problems
9.6Exceptional
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5
AracombieAracombie 6 Pack 3 Flute 90 Degree Countersink Drill Bit Set, Titanium HSS Chamfering Tool Set Metric End Mill Cutter Bits, Deburring Chamfering Bit for Metal, Wood, Aluminum, Stainless Steel
Main highlights- Wide Range of Application: The metric countersink drill bit can meet your needs for drilling holes, can drilling, chamfering, deburring on wood, plastic, pvc, aluminum, copper, stainless steel and other soft materials(hardness ≤ 25 degrees).
- Package Contains: 6 x HSS Countersink Drill Bits, 6 different sizes of countersink drill bit can meet your needs. Metal Countersink Bit Size: 0.81 inch / 20.5mm, 0.65 inch / 16.5mm, 0.49 inch / 12.4mm, 0.41 inch / 10.4mm, 0.33 inch / 8.3mm, 0.25 inch / 6.3mm. Three-blade design, cutting faster.
- Material: 90 degree countersink set is made of high quality HSS, the surface is titanium plated, which is more sharp and durable. This drill countersink set is very suitable for use on various common drilling rigs.
- Cost-Effective: The chamfering tool set can be reused for a long time. A set contains 6pcs chamfering tool bits, which is very suitable for woodworking, DIY enthusiasts, and craftsmen to buy and use.
- After-Sales Guarantee: Aracombie has a 24-hour human customer service. If you have any questions before purchasing or are not 100% satisfied with the product, please feel free to contact us, and we will provide you with solutions as soon as possible .
9.5Excellent
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6
BOSCH26% OffBOSCH CSH2 5/8-Inch HSS Countersink (CSH2C)
Main highlights- Trailing flute automatically deburrs holes
- Self-starting point starts on contact
- Resharpenable cutting edge enables longer tool life
- Eliminates chatter and vibration
- Balanced double flute
9.3Excellent
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7
Accusize Industrial Tools25% OffAccusize Industrial Tools 1-1/4'' Hss Countersink for Rota-Cutter, 3/4'' Weldon Shank for Magnetic Drilling Machine, 90 Deg, Ce00-0114
Main highlights- Universal Shank Design: Features a standard 3/4'' (19.05mm) Weldon shank, ensuring seamless integration with most magnetic drilling machines and drill press attachments.
- Optimized Countersinking: Engineered with a 45° per side, 90° included angle for precise countersinking, chamfering, and deburring, enhancing metalworking accuracy.
- High-Speed Steel Construction: Made of industrial-quality High-Speed Steel (HSS), offering excellent wear resistance and versatility for both ferrous and nonferrous material applications.
- Efficient Metalworking: Specifically designed to improve efficiency in deburring and chamfering pre-drilled holes, resulting in clean and precise finishes.
- Dimensional Adaptability: Provides a cutter diameter (D) of 1-1/4", a pilot hole diameter (d1) of 1/4", a shank (b) of 3/4", an overall length (L) of 1-7/8", and a precise angle of 90°.
9.1Excellent
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8
AracombieAracombie 6 Pack 3 Flute 90 Degree Countersink Drill Bit Set, Titanium HSS Chamfering Tool Set Metric End Mill Cutter Bits, Deburring Chamfering Bit for Metal, Wood (6mm 8mm 9mm 12mm 16mm 19mm)
Main highlights- Wide Range of Application: The metric countersink drill bit can meet your needs for drilling holes, can drilling, chamfering, deburring on wood, plastic, pvc, aluminum, copper, stainless steel and other soft materials(hardness ≤ 25 degrees).
- Package Contains: 6 x HSS Countersink Drill Bits, 6 different sizes of countersink drill bit can meet your needs. Metal Countersink Bit Size: 0.24 inch / 6mm, 0.31 inch / 8mm, 0.35 inch / 9mm, 0.47 inch / 12mm, 0.63 inch / 16mm, 0.75 inch / 19mm. Three-blade design, cutting faster.
- Material: 90 degree countersink set is made of high quality HSS, the surface is titanium plated, which is more sharp and durable. This drill countersink set is very suitable for use on various common drilling rigs.
- Cost-Effective: The chamfering tool set can be reused for a long time. A set contains 6pcs chamfering tool bits, which is very suitable for woodworking, DIY enthusiasts, and craftsmen to buy and use.
- After-Sales Guarantee: Aracombie has a 24-hour human customer service. If you have any questions before purchasing or are not 100% satisfied with the product, please feel free to contact us, and we will provide you with solutions as soon as possible .
8.9Very Good
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9
ColumPROColumPRO 4PCS Cobalt Single-End Countersink Chamfer Tool Set - Heavy-Duty M35 90-Degree Countersink Bits for Metal, Stainless Steel, Copper, Wood, Fiberboard,SAE 1/4"-3/4", 2-5, 5-10, 10-15, 15-20MM
Main highlights- 【Versatile Application】Our drill bits are compatible for use with a range of drilling machines, table drills, milling machines, cordless drills and impact drivers. Perfect for machinists, DIY enthusiasts and homeowners.
- 【Premium Quality】Crafted from M35 Cobalt High Speed Steel with cobalt coating, our countersink drill bits boast unparalleled toughness, high temperature threshold and long-term durability, delivering consistently exceptional results.
- 【Portable & Convenient】Our countersink chamfer tools come with individual storage cases for easy portability. Say goodbye to lost bits and restless searches for the right tool.
- 【Impressive Performance】Used after pre-drilling for screws or deburring holes as well as chamfering the edge of a part, they cut cleanly and are chatter-free. The cone tip assures accurate centering, also the enlarged spiral flute prevents chips from clogging and ejects chips rapidly. Designed to handle tough materials like stainless steel and other high-performance alloys.
- 【Comprehensive Set】This set includes 4 drill bits in varying sizes, with each of the 2-5MM, 5-10MM, 10-15MM and 15-20MM countersink chamfer tools included, providing you with a complete package for all your drilling needs.
8.8Very Good
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10
TJRTJR® Countersink 90° Set of 6 Pieces 1/4", 1/3", 2/5", 1/2", 2/3", 4/5" HSS Uncoated, for chamfering. Tool Bits Set for Steel, Aluminum, Brass, Wood, Plastic (Uncoated in Original Rose Plastic Case)
Main highlights- Smooth cutting and fine chamfer surface.
- Set of 6pcs 1/4", 1/3", 2/5", 1/2", 2/3", 4/5" in inches (6,3mm to 20,5mm in metric) in plastic durable rose case.
- Material HSS. Ground precision drill bit for challenging drilling in metal and steel.
- For chamfering and hole preparation to apply the head of screws.
- 3 Flute for chip flow smoothly & fast cutting.
8.7Very Good
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