Precise Depth Control for Perfect Countersinking: This 6-piece set includes sizes 2.8 x 8 mm, 3.2 x 8 mm, 3.5 x 10 mm, and 4 x 10 mm. Each drill bit features an adjustable depth stop for precise control, ensuring clean and even results in various wood projects. Durable High-Quality Steel Construction: Crafted from superior steel, these countersink drills offer high cutting performance and extended durability. They remain sharp and effective even with intensive use, making them ideal for wood, MDF, and chipboard. Quick Manual Depth Adjustment: The hand-rotating depth stop allows for swift and precise manual adjustments of the drilling depth without loosening screws. This feature is perfect for achieving flawless countersunk holes quickly and efficiently. Efficient Chip Removal: Designed with optimized spiral grooves, these drill bits ensure fast chip removal, preventing blockages and maintaining a clean workspace. This feature enhances the efficiency of drilling countersunk holes without interruptions. Versatile Use Across Wood Projects: Suitable for natural wood, chipboard, MDF, and synthetic fiberboard, these drills come in 4 sizes for precise countersinking. They are perfect for furniture assembly and a variety of other woodworking tasks. Color: Red Material: Metal Package Contents: 1* Countersink Drill set Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.