set of wood drill bits, with countersunk holes, high-speed steel (HSS) drill bits, with a hex key and a chamfering tool, sizes 3, 4, 5, 6, 7, 8 and 10 mm.

Material: The drill bit is made of tungsten steel, a wear-resistant, heat-resistant, and durable material. Its long lifespan makes drilling and chamfering easier. Three-point positioning: Three-point positioning ensures better stability, reducing slippage and deviation. Drilling is precise and fast. Rapid chip removal: The 5-flute wood drill bit features a wide chip evacuation groove, allowing for a smooth surface on various hardwoods, softwoods, or aluminum. Adjustable and adaptable: The shank depth is adjustable using a wrench; 7 different sizes meet all your needs. Multiple sizes: 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, and 10mm spiral wood drill bits. The round shank is compatible with bench drills, impact drills, and chuck drills, and allows drilling into hardwood and parquet flooring. Suitable for wood, plastic, rubber, and other materials, it's the ideal choice for production, repair, or portable drilling work. Simply loosen or tighten the flat-head screw to adjust the drilling depth and use screws of different lengths. The smooth, rounded shank offers minimal friction with the machine and fits most bench or hand drills. When drilling, hold the drill bit as vertically as possible to avoid uneven holes. Package dimensions: 22 cm x 17.5 cm x 2.5 cm. Contents: 1 set of 7 drill bits and 1 wrench.