5Pcs Countersink Drill Bit Set, HSS Woodworking Chamfer Counter Bit Tapered Drill Bit Drill Bit for Wood Drilling, Plastic, Drilling Holes (10mm) by Amazon.co.uk

• 【Different Sizes】: Drill bit sets include 5 different sizes: 2.8x10mm, 3.0x10mm, 3.2x10mm, 3.5x10mm, 4x10mm

• 【High Quality】：These countersink drill bits are made of high quality alloy steel. Which offer superior cutting power. High hardness and wear resistance, convenient and fast to drill a hole

• 【Removable & Adjustable】: Use the included wrench to remove the screw and adjust the length of the countersunk hole to adjust the drilling length of screws of various lengths. These drill bit is a good helper in our daily life and improve your working efficiency.

• 【Widely Use】: Used for wood, plastic, soft metal, fiberboard, aluminum alloy screw countersinks, holes, etc.

• 【High Efficiency】: The spiral flute with a center drill will quickly discharge chips from the hole. It can effectively prevent the accumulation of debris retention and improve drilling efficiency