Tool Bit Chamfer Cobalts of 2025
Best Choice1
VALYRIANTOOLVALYRIANTOOL 4PCS Cobalt Single End Countersink Drill Bits Set, TiAlN Coated 90 Degree Heavy Duty M35 Countersink Chamfer Tool for Metal, Stainless Steel, Copper, Wood, 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 and 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
9.7Exceptional
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Value for Money2
toolanttoolant Noir-Ti Cobalt Countersink Drill Bit Set(Pro), Titanium Aluminum Nitride Coated with Quick Change Hex Shank, 5-Piece 1/4" - 3/4"
Main highlights- toolant Pro Cobalt Countersink Drill Bit Set - An exceptional choice for Chamfering. Consisting of 5 titanium aluminum nitride coated cobalt drill bits, offers exceptional performance specifically for drilling through metal.
- Titanium Aluminum Nitride Coating - Increases surface hardness to 94HRC with outstanding heat-resistance, so your drill bit cuts fast and stay sharp
- Industrial Grade Cobalt High-speed Steel - Superior strength, heat resistance, and durability, making it ideal for drilling metal
- Impact Ready Hex Shank - One-piece built solid 1/4" Hex Shank for quick change
- 90 Days Warranty - In the event that you are not completely satisfied with your purchase for any reason, please reach out to us, and we will gladly provide a 105% refund or replacement.
9.5Excellent
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3
ColumPROColumPRO 3PCS Cobalt Single-End Countersink Chamfer Tool Set -TiAlN Coated Heavy-Duty M35 90-Degree Countersink Bits for Metal, Stainless Steel, Copper, Wood, Fiberboard,2-5,10-15,15-20MM,1/4"-3/4"
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 TiAlN 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 3 drill bits in varying sizes, with each of the 2-5MM, 10-15MM and 15-20MM countersink chamfer tools included, providing you with a complete package for all your drilling needs.
9.4Excellent
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4
ColumPROColumPRO 5PCS Cobalt 5-Flute Countersink Drill Bit Set - Heavy-Duty M35 82-Degree Countersink Chamfer Tool Set for Metal,Stainless Steel,Copper,Wood,Fiberboard,Plastic,SAE 3/4”,5/8”,1/2”3/8”,1/4”
Main highlights- 【Versatile Application】Our drill bits are compatible with cordless drills. Perfect for machinists, tradesmen, DIY enthusiasts and homeowners.
- 【Premium Quality】 Manufactured from M35 cobalt high speed steel, our countersink drill bits have unrivalled toughness, high temperature resistance and long life to deliver exceptional results time after time.
- 【Portable & Convenient】Our chamfering tools come with a portable case and CNC-machined lining for easy transport and Storage. Say goodbye to lost bits and restless searching for the right tool.
- 【Impressive Performance】Used prior to drilling holes for screws, the 5-flute blade ensures accurate centering and rapid ejection of chips and shavings. Designed for tough materials such as stainless steel and other high performance alloys.
- 【Comprehensive Set】This set includes 5 drill bits in varying SAE sizes, with each of the 3/4”, 5/8”, 1/2”, 3/8”, 1/4” 82-degree countersink chamfer tools included, providing you with a complete package for all your drilling needs.
9.1Excellent
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5
QWORKQWORK 4PCS Cobalt Single-End Countersink Chamfer Tool Set, M35 High-Speed Steel, 90° Cutting Angle
Main highlights- Versatile Compatibility: The set is designed to seamlessly work with diverse materials such as metal, stainless steel, copper, wood, and fiberboard.
- User-Friendly Design: The set is ideal for machinists and DIY enthusiasts, with individual storage cases for portability across drilling, milling, and impact tools.
- Reliable Material: The set is crafted from M35 High-Speed Steel with a cobalt coating for toughness, high temperature resistance, and durability.
- Precision Design: It features a 90-degree cutting angle for clean cuts and rapid chip ejection, enhancing performance and efficiency.
- Comprehensive Set: The kit includes four countersink drill bits in both SAE (1/4"-3/4") and metric sizes (2-5MM, 5-10MM, 10-15MM, 15-20MM) for varied applications.
9.0Excellent
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6
MateworkCountersink Drill Bit Set, M35 Cobalt HSS Countersink Drill Bits 6 Pieces 1/4 Inch Quick Change Hex Shank for Metal, Wood, Stainless Steel, Carbon Steel
Main highlights- VERSATILE APPLICATIONS -- Includes 5 most popular sizes (1/4", 3/8", 1/2", 5/8", 3/4") and 1 special size 5/16". M35 Cobalt Countersink Drill is suitable for stainless steel, carbon steel, iron, copper, aluminum and most other metals as well as wood, plywood, etc.
- USER-FRIENDLY DESIGN -- Featuring laser-engraved step sizes, our countersink drill bits ensure clear visibility and durability during use. This design enhances convenience and accuracy, streamlining the drilling process.
- HIGH-QUALITY COBALT MATERIALS -- MATEWORK countersink drill bits are crafted from M35 cobalt high-speed steel, Provide double protection fortified with a cobalt coating for enhanced durability, corrosion resistance, and heat resistance.This guarantees reliable performance, even in demanding applications.
- EFFICIENT CUTTING DESIGN -- With a five-flute design, these drill bits offer superior stability during cutting and efficient debris discharge. This design extends the blade life, ensures accurate cuts, and speeds up the drilling process.
- DEDICATED CUSTOMER SERVICE -- While our products undergo rigorous quality inspections, we understand that unforeseen issues may occur. Rest assured, we are committed to providing professional customer service. If you encounter any quality problems, please contact us via Amazon for prompt assistance and replacement.
8.7Very Good
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7
KEWAYOKEWAYO 4PCS M35 Cobalt Countersink Bit Set – 90° Heavy-Duty Chamfer Tools for Metal, Stainless Steel, Wood & More | SAE & MM Sizes (1/4" to 15mm)
Main highlights- Works with Any Drill—From Professionals to DIYers Compatible with hand drills, drill presses, milling machines, and impact drivers, making it a must-have for machinists, metalworkers, carpenters, and hobbyists
- Smooth, Chatter-Free Cutting with Efficient Chip Removal The precision 90° cone tip ensures accurate centering, while the deep spiral flutes prevent clogging and eject chips quickly for cleaner, faster drilling
- Premium M35 Cobalt Steel for Extreme Durability Made from high-speed M35 cobalt steel with a protective coating, these countersink bits resist heat and wear, ensuring long-lasting performance even in tough materials like stainless steel and hardened alloys
- Easy Storage & No More Lost Bits Each bit comes in its own protective case, keeping them organized and portable—ideal for workshops, job sites, or home DIY projects
- Complete 4-Piece Set for Versatile Sizing Covers all common hole sizes (1/4"–15mm), including 1-4mm, 2-5mm, 5-10mm, and 10-15mm—perfect for screws, deburring, and chamfering edges without needing multiple tools
8.5Good
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8
ColumPROColumPRO 5PCS Cobalt 5-Flute Countersink Drill Bit Set-M35 82-Degree Countersink Chamfer Tool Set for Metal,Stainless Steel,Copper,Wood,Fiberboard,SAE 3/4”,5/8”,1/2”, 3/8”,1/4”,with Tri-Flats Shank
Main highlights- Versatile Application: This set includes 5 different SAE-sized bits (3/4", 5/8", 1/2", 3/8", 1/4"), perfect for use with cordless drills. It’s an essential tool for machinists, tradesmen, DIY enthusiasts, and homeowners working on wood, metal, fiberboard, and more.
- Premium Quality: Crafted from M35 cobalt high-speed steel, these countersink drill bits offer exceptional toughness, heat resistance, and long-lasting durability to deliver outstanding performance, even on tough materials like stainless steel and high-performance alloys.
- Portable & Convenient: The drill bits come in a durable CNC-machine case for easy storage and transport. Organize your bits and keep them within reach, so you’re always ready to tackle any task without the hassle of searching for the right tool.
- Impressive Performance: Featuring a 5-flute blade design, the drill bits ensure accurate centering and efficient chip removal for smooth, clean chamfering. Ideal for hard materials like stainless steel, copper, and plastic, they guarantee precision every time.
- Heavy-Duty: The tri-flat shank design enhances the grip in your drill chuck, preventing slippage and ensuring a secure fit. This feature is crucial for tackling challenging tasks and provides superior stability, even under heavy-duty use.
8.4Good
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9
JNB ProJNB Pro 5PC Countersink Bits for Steel - Sizes 1/4" 3/8" 1/2" 5/8" 3/4", Metal Working Countersinks, 5 Flute Design 82° M35 HSS 5% Cobalt Grade Bit 1/4" Shank - Ideal for Stationary or Hand Drill
Main highlights- VALUE FOR PRICE. Since these counter sink bits are cobalt grade, they will work excellently and exhibit a longer lifespan in cutting hard metals such as stainless steel, cast iron, brass, copper, aluminum, and other soft metals, as well as any type of wood, especially when you apply cutting fluid for added care to the bits.
- STAYS SHARP FOR LONGER. Sharpness remains even after multiple countersinks; edges stay looking new with clean chips and no chatter as the bits are designed to work with metal, offering excellent performance and heat resistance, and can be used without coolant.
- RIGHT BITS FOR THE RIGHT JOB. Our countersink bit for metal comes in 5 SAE diameters: 1/4", 3/8", 1/2", 5/8", and 3/4". These varying sizes make countersinking easy, providing the right size for every task, whether it's metalwork, DIY, or woodworking projects.
- COUNTERSINK FOR METAL. Made from HSS M35 material, these countersink drill bits are sure to provide smooth and clean countersinks on metals. Use these cobalt conuntersink for steel plates or hinges on drop-top tables, cabinets, and doors; stainless shelving racks with countersunk screws; or general use around the house in aluminum bars and plates, mild steel, Formica countertops, acrylic, and even wood furniture.
- COBALT STEEL. These countersink drill bit set for metal ensure durability as they are made with 5% cobalt steel. Features an 82-degree, 5-flute design they're capable of countersinking in steel, especially when using a hand drill or non-stationary drill where pure carbide bits would chip or break due to changes in drill orientation.
8.1Good
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10
DKIBBITHDKIBBITH Heavy-Duty Deburring Chamfer Tool with Sharp Tungsten Carbide Blades, Fast Hex Shank Deburr, External Burr Removal for Metal Rod Bolt Pipe 3D Printing PVC in 1/8" to 3/4" Diameter (3~19mm)
Main highlights- Versatile Compatibility: Our Deburring tool's quick-release hex shank seamlessly fits any standard drill, accommodating a wide range of projects and materials from steel cropper rods bolts 3D printing resin to PVC pipes with diameter sizes from 1/8" to 3/4"
- Swift & Clean Deburring Tool: The optimized Carbide blade geometry ensures rapid removal of burrs, creating clean chamfered external edges on metal, PVC, and piping with superior speed and precision.
- Heavy-Duty Construction: our Deburring Chamfer Tool Constructed to withstand rigorous use, our chamfer tool excels in industrial applications, metalworking, plumbing tasks, and DIY projects.
- Ergonomic Design: The DKIBBITH External Deburring tool user-friendly design allows for straightforward attachment to drills, facilitating an effortless deburring experience even for non-professionals.
- Advanced Tungsten Carbide Blades: Engineered with 3 high-grade tungsten carbide blades, this deburring chamfer tool delivers unrivaled sharpness and durability for extended usage without frequent replacements.
8.0Good
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