Milling and Drilling Bit Set, 8pcs HSS 5 Flute Carpentry Milling Cutter Heart Drill Bits Chamfering Cutter 3-10mm

The wood drill bit is made of HSS 4241, the center chamfer drill body is NO. 45 single chamfer edge with 90-degree steel flute

7 sizes in a drill bit set (3mm / 4mm / 5mm / 6mm / 7mm / 8mm / 10mm), which perfectly meet your different needs. A set for sending a small wrench; the countersunk head diameter allows for drilling to the desired depth and control. The drilling length can be adjusted for different screw lengths by simply loosening and tightening the fixing screws. The 5-flute chamfer allows for faster wood removal during use; the disposable sink hole is drilled smoothly, and the screw plug is perfectly integrated into the workpiece surface. Suitable for use on steel, aluminum and other metals, wood (hardness less than 25 degrees), and plastic; ideal for production, maintenance, or portable drilling work.