10 Best Drill Bit Sets 2025 in the United States

The BOSCH CO14B 14-Piece Assorted Set is a solid choice for anyone looking to tackle a range of drilling projects, particularly in tougher materials like stainless steel, cast iron, and titanium. One of the standout features is the M42 cobalt construction, which offers enhanced durability and heat resistance, making these bits last significantly longer than standard options. The inclusion of a three-flat shank design helps to prevent slipping, which is especially useful when drilling into hard surfaces. With sizes ranging from 1/16" to 1/2", this set caters to various drilling needs, allowing for versatility in both home and professional environments.

The cobalt material and titanium finish provide excellent performance, but they may not be necessary for casual DIY users who primarily work with softer materials like wood or plastic. For these users, investing in a more basic set might be more cost-effective. Additionally, some users may find the bits to be more expensive compared to other standard drill sets, which could be a consideration for budget-conscious buyers.

The BOSCH CO14B set excels in demanding applications and is ideal for professionals or serious hobbyists who need reliable drill bits for challenging tasks. Those with only light drilling needs may not fully utilize the advantages these bits offer.

The Milwaukee SHOCKWAVE Impact Duty Alloy Steel Drill and Screwdriver Bit Set includes 100 pieces, featuring a wide variety of bit types such as Slotted, Torx, Hex, Square, and Phillips. This versatility makes it suitable for many common fastening tasks. Made from heat-treated Alloy Steel, the bits are designed for durability, incorporating features like the Wear Guard Tip to reduce bit wear and the Optimized Shockzone to prevent breaks by absorbing impact stresses. These characteristics make the set especially well-suited for use with impact drivers, which require tougher bits to withstand high torque without damage.

The size range is generally around 1 inch for compatible fasteners, covering many household and professional jobs, although it may be limited if very large or very small bits are needed. The steel finish provides a reliable coating rather than specialized coatings like titanium or black oxide, so the bits should perform well under typical conditions but might not offer extra corrosion resistance. With its robust construction and variety, this set is ideal for those who frequently work with screws and bolts, particularly in trades or home projects requiring impact driver compatibility, though it may not meet needs for a broader size range or specialized coatings for extreme conditions.

The Milwaukee 48-89-4680 18-Piece Shockwave Impact Duty Thunderbolt Titanium Drill Bit Set is designed for those who frequently engage in heavy-duty drilling tasks. One of its standout features is the titanium coating, which helps reduce heat and minimizes warping during rapid use, making it safer for extended applications. The unique Shockwave geometry is engineered to withstand high torque applications, ensuring durability and longevity for demanding jobs. Additionally, the parabolic flute design aids in chip clearing, which can enhance drilling speed and efficiency by reducing friction and heat buildup.

This set includes a wide variety of bit sizes, making it versatile enough for many different projects, from small to larger-scale tasks. The robust plastic storage case is also a significant plus, featuring a slide lock system that keeps bits secure and organized, whether you're transporting them or storing them in your tool kit.

While the titanium coating is beneficial, it may not be as effective against wear as some premium materials over extensive use. Users looking for specific specialty bits might find that this set, while comprehensive, doesn't cover every possible need. Moreover, for those new to drilling, the variety of sizes may be overwhelming if you’re unsure which bits to choose for certain tasks.