- Comprehensive Countersink Drill Set : This set includes 8 high-quality countersink drill bits in 7 sizes (3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 10mm) accompanied by an Allen key. Each bit is clearly numbered for quick identification, allowing you to easily find the size you need for various tasks. - Durable Construction : Crafted from high-speed steel HSS# 4241 and featuring a black chamfer drill body made of steel # 45, these drill bits are designed for longevity. The unique single flute edge creates a 90-degree chamfer and the titanium nitrate coating enhances cutting performance. - Efficient Chip Removal : The innovative three-pointed tip design offers precise and swift drilling, minimizing offset and slip. The five-flute sharp cutter reduces chatter and ensures effective chip removal. This design enables simultaneous countersinking and drilling, saving you both time and effort. - Adjustable and User-friendly : The included Allen key allows for easy adjustments and disassembly of the countersink drill and chamfer. Simply loosen or tighten the screws to modify drilling depth based on your project requirements. Applications : 1. Ideal for woodworking projects where precision countersinking is essential for flush finishes. 2. Great for metalworking tasks requiring clean, accurate holes for screws and fasteners. 3. Perfect for DIY enthusiasts looking to create professional-quality holes in a variety of materials with ease. This countersink drill set combines versatility, quality construction, and user-friendly features, making it an essential tool for both professionals and hobbyists alike.