Features: This 4 piece steel countersink drill bits set features adjustable depth stops and sharpened twist flutes for precise, clean holes in woodworking projects. HSS tapered bit (2.8mm/3.2mm/3.5mm/4mm), includes a depth limiting collar and plastic guard to minimize surfaces damage while drilling countersunk holes. Ideal for carpenters, DIY enthusiasts, and furniture makers requiring professional grade tools for cabinetry or wood joinery tasks. Perfect for drilling pilot holes and 82° countersinks in plywood, particleboard, or plastic panels during shelf installations or craft projects. Compact storage case keep drill bits organized and portable, ensuring quick access to the right sizes for any woodworking application. Specifications: Component: Steel Color: As pictures shown. Optional Drill Bit Type: 8-10mm, 10mm Size: As pictures shown. Quantity: 1 set Package Includes: 1 Set Countersink Drill Bit note: Please allow 1-3cm error due to manual measurement. please sure you not mind before you bid. Due to difference between different monitors, the picture may not reflect the actual color of the item.