Countersink Drill Bit Set, 6 Pieces, 2.8/3.2/3.5/4.0mm Countersink Wood Drill Bit with Depth Stop, Drills Countersinks with 1/4 Inch Hex Shank,Made of HSS, Precise Drills, for Wood Processing

• Premium Set: Our premium 4 piece countersink drill bit set features HSS tapered pilot drills in sizes 2 .8MM×8MM , 3 .2MM×8MM , 3 .2MM×10MM , and 4 .0MM×10MM
• Quality Material: The pilot drills are made of high speed steel with spiral chip design for efficient cutting while the pointed tungsten carbide edges ensure smooth countersinking and counterboring holes , making them ideal for screws with 82 degree imperial (US) standard
• Adjustable Depth: Both drilling and countersinking depth can be easily adjusted using the hex key and depth control stop , providing greater flexibility for various tasks and applications
• Versatile Application: Suitable for various materials including natural wood , engineered wood , MDF , particle board , plywood , aluminum , nonferrous metals and decorative materials , this set is ideal for various woodworking and drilling projects
• Usage Tip: For optimal performance and clean edges , operate the countersink at a low speed of about 200 RPM

Parts List: 1× Countersunk Cone Hole Cutter 4× Four Blade Countersink Drill Bits 1× Hex Wrench Description： The pilot drills are made of high speed steel with spiral chip design for efficient cutting while the pointed tungsten carbide edges ensure smooth countersinking and counterboring holes , making them ideal for screws with 82 degree imperial (US) standard Key Feature: Both drilling and countersinking depth can be easily adjusted using the hex key and depth control stop , providing greater flexibility for various tasks and applications Specification: Material: Aluminum alloy body, high speed steel drill bit Size: Drill bit diameter: 2.8 × 8 mm/0.1 × 0.3 inch, 3.2 × 8 mm/0.1 × 0.3 inch, 3.2 × 10 mm/0.1 × 0.3 inch, 4.0 × 10 mm/0.15 × 0.3 inch Limited countersunk cone hole cutter total length 8.5 cm/3.3 inch Note: 1.There may be slight differences between the picture and the actual color of the commodity . We will try our best to show you the exact color 2.Please allow slight dimension difference due to manual measurement