High Speed Steel: Crafted from HSS M2 carbon steel, these drill bits resist wear and stay sharp longer, ensuring reliable performance for all your woodworking projects. Depth Control: Aluminum depth stops with smooth bearings prevent overdrilling and allow precise depth settings using the included hex wrench for consistent, clean holes. Chip Removal: Spiral flute design pushes wood chips outward to prevent clogging, making drilling smoother and faster while keeping your workspace cleaner. Woodworking Use: Perfect for natural wood, MDF, plywood, and particle board, this countersink drill bit set handles various materials for cabinet making and DIY tasks. Markings & Accuracy: Upgraded aluminum collars provide easy to read measurements and greater drilling precision, helping you achieve perfect counterbore holes every time. Description: This high speed steel (HSS) M2 countersink drill bit set is designed for precision woodworking and DIY projects. Featuring four sizes (2.8 x 8 mm, 3.2 x 8 mm, 3.5 x 10 mm, 4 x 10 mm) with 3/8" 82 degree counterbore and 1/4" hex shank, it offers versatile drilling options. The upgraded aluminum depth stops with built in bearings ensure accurate, stable depth control while preventing overdrilling. Spiral flute design efficiently clears wood chips to avoid clogging and maintain smooth operation. Included hex wrench allows easy adjustment of drilling depth. Ideal for natural wood, solid wood planks, particle board, MDF, plywood, and synthetic fiberboard. For optimal results, use at low speeds ( 200 rpm). Not suitable for metal or thin steel plates. Item Name: Drill Bit Material: Alloy, Carbon Steel Features: Depth Control, Chip Removal, Adjustable Fit Size Details: L: 3cm/1.18", W: 3cm/1.18", H: 8cm/3.15" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 Set of Drill Bits