Best Bosch Countersink Bits of 2025

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Countersink bits by Bosch are a versatile and essential tool for any woodworking or metalworking enthusiast. These high-quality bits are designed to create a conical hole that allows screws to sit flush with the surface, resulting in a professional and tidy finish. With their sharp cutting edges and durable construction, Bosch countersink bits ensure precise and clean cuts every time. Whether you're working on a DIY project or a professional job, these bits will help you achieve a flawless result.
At a Glance: Our Top Picks
Top 10 Bosch Countersink Bits
Bosch 13.0 x 50 x 1/4-Inch Countersink Bit
The Bosch Countersink Bit measures 13.0 x 50 x 1/4 inches, making it an ideal tool for creating clean, angled holes in various materials. Its hex design ensures a secure grip, enhancing control during use. This feature is particularly useful for achieving precision in your work, whether you are a DIY enthusiast or a professional tradesperson. The durable construction promises longevity, giving you confidence in its performance over time. With the EAN 3165140004626, you can easily identify this reliable tool for your next project.
Bosch Countersink Bit Set for Wood and Plastic
The Bosch Countersink Bit Set is designed for smooth countersinking in soft materials, making it a great addition to your toolkit. With a 90° cutting edge, you can achieve precise results in wood, plastic, and non-ferrous metals. The cylindrical shank ensures compatibility with three-jaw drill chucks, providing you with versatility and convenience during use. This set includes three bits with varying diameters of 8, 10, and 12 mm, allowing you to tackle different tasks with ease.
Bosch 13 x 50 mm TS M6-M8 Countersink
The Bosch TS Countersink is designed to enhance your power tool experience. As a leading manufacturer, Bosch focuses on developing accessories that meet your needs for efficient working. This countersink bit is ideal for various applications, ensuring you can tackle different tasks with ease. The continuous research and development at Bosch means that you benefit from optimised accessories tailored for user convenience, helping you achieve better results in your projects.
Bosch 20 x 48 x 10 mm Countersink Drill Bits
The Bosch Countersink Drill Bits are designed for precision drilling with a countersink size of 20.0 x 48 x 10 mm. These high-speed steel (HSS) bits ensure durability and sharpness, making them ideal for creating clean, smooth holes in various materials. You will appreciate the ease of use they offer, allowing you to achieve professional results. The ability to countersink helps you to create flush finishes, which is especially useful in woodworking and metalworking projects.
BOSCH SP515 Hex Shank Countersink Drill Bit Set
The BOSCH SP515 Countersink Set offers exceptional versatility for your drilling needs. With adjustable depths, you can create precise and clean pilot holes in wood, plastic, and composite materials. This innovative tool allows you to drill, countersink, and counterbore in a single step, saving you time and effort. The universal fit means it works seamlessly with all Bosch and competitive brand drill/drivers, giving you flexibility in your projects. Additionally, it includes an Allen wrench for easy use with hex shanks that fit both corded and cordless drills.
Bosch Countersink Bits Set for Wood and Metal
The Bosch Countersink Bits are a versatile 3-piece set that caters to various head sizes of 8mm, 10mm, and 12mm. These bits fit all brands and are perfect for countersinking and deburring in soft materials such as plastic and wood, ensuring a smooth finish. With 90° cutting edges, they meet tool standards, providing you with precision and efficiency in your projects. This set is an excellent choice for anyone looking to enhance their DIY tasks with ease.
Bosch 3mm Wood Drill Bit with Countersink
The Bosch Wood Drill Bit is designed for convenience, featuring a 3mm head size that fits all brands. This bit is perfect for drilling into softwood, laminated chipboard, non-laminated chipboard, and plywood. You can enjoy the convenience of drilling and countersinking in one operation, saving you time and effort. The integrated 90-degree countersink bit and centring tip ensure precise results, making your woodworking projects easier and more professional-looking.
Bosch 6 mm Wood Bit with Countersink
The Bosch 6 mm Countersink Bit is designed to work efficiently with both hard and soft wood. Its countersink feature allows you to create a smooth finish, making your projects look more professional. The bit is compatible with all drills that have a round shank drill holder, ensuring versatility in your toolkit. This product aims to enhance your woodworking experience, making tasks quicker and easier. You will appreciate how this tool improves the quality and precision of your work.
Bosch PRO Steel Countersink Bit for Steel
The Bosch Countersink Bit is designed for precise deburring and countersinking in steel, making your tasks easier and more efficient. Its cylindrical shank fits perfectly with three-jaw drill chucks, ensuring a secure grip during use. You will find it particularly useful for deburring or enlarging hole sides for countersunk fasteners in soft metals. With a size of 12 x 40 mm and an M6 specification, this bit can help you achieve professional-quality results in your projects.
Bosch 3 mm Wood Bit with Countersink
The Bosch Wood Bit is designed for precision woodworking tasks. With its 3 mm diameter, it allows you to create clean and accurate holes in wood, making your projects easier and more efficient. The 90-degree countersink feature is particularly useful for ensuring screws sit flush with the surface, providing a polished finish. This bit is ideal for both professional and DIY woodworkers who value quality and performance in their tools.
During our Bosch countersink bit research, we found 18 Bosch countersink bit products and shortlisted 10 quality products. We collected and analyzed 13,864 customer reviews through our big data system to write the Bosch countersink bits list. We found that most customers choose Bosch countersink bits with an average price of £17.74.
The Bosch countersink bits are available for purchase. The top 10 picks range in price from a low of £4.00 to a high of £27.00, find the one that fits your budget.

Jennifer Fraser is a licensed contractor specializing in sales, maintenance, and kitchen, bathroom, and home appliances, tools, and utilities. She owns a store in Leeds where you can get any home and tool appliance. Jenny has a degree in literature, but she combines her knowledge and experience with her degree to publish DIY articles on solving home appliances issues to keep up the family enterprise.