WEIWEISTORE Two Flute Counterbore with Depth Stop, 4pcs Four-Flute Hss M2 Tapered Drill Bits and Adjustable Depth Stop Collar with Controlled Depth for Clean, Suitable for Softwood Hardwood MDF Aluminum Hand Drill  (3.7 cm Chuck Size)

【Save Time 2-in-1 Drilling】Complete drilling and countersinking in one step, eliminating tool changes and reducing work time, ideal for woodworking and DIY projects where efficiency and clean screw finishes matter 【Consistent Depth Control】Adjustable depth stop with clear markings lets you drill to precise depth every time, avoiding uneven holes and ensuring a professional finish 【Protect Work Surfaces】Built-in stopping mechanism halts instantly upon contact to prevent over-penetration, while the free-spinning collar reduces friction and avoids burns or scratches on wood 【Smooth Cutting & Durability】Multi-flute cutting design removes chips efficiently and creates cleaner holes, made from durable high-speed steel and carbon steel for repeated use without losing sharpness 【Fits Most Drills & Ready for Any Project】Standard 1/4" hex shank ensures secure anti-slip fit in most drills, includes multiple bit sizes and accessories in a compact case for wood, MDF, particleboard, and more