[6PCS]: 6 PCS Chamfer Cutters are available in six different diameters of 6.3mm/8.3mm/10.4mm/12.4mm/16.5mm/20.5mm. Different diameters can be used for drilling.[Sharp anti-rust ]This cutter is made of HSS high speed steel, which is of high hardness and not easy to rust. Its cutting edge is hardened and ground, so it is sharper and has a longer service life.NoteIf you use a countersunk drill on a hand drill, use a twist drill bit to drill the hole, then use a countersunk drill so as to avoid any risk of sloshing caused by drilling.[More processing materials]: 6 PCS countersinks in walnut are for chamfering the edges of the holes. The countersinks can process different materials such as hardwood and cork, aluminum foil, plastic, PVC and light iron.This chamfering cutter is suitable for all kinds of machine tools[Chamfering design]: The chamfer cutter adopts the appropriate tilt angle design, anti-rust and anti-corrosion, beautiful and delicate, giving the strength and rigidity of the sharp edge cutter, the high increase of the cutter, the processing properties of cutting and milling.[Field of application]: This countersunk drill kit is suitable for home DIY and daily use. It can be drilled easily and efficiently, not only without burrs, but also without scratches.Sturdy and durable< p>Made of high quality HSS materials, this countersunk drill bit features high hardness and is not easy to rust. For example, it can be processed on steel plates, wooden boards and plastic platesVarious sizesThe countersunk drill bit has six diameters of 20.5 mm, 16.5mm, 12.4mm, 10.4mm, 8.3mm and 6.3mm. A variety of sizes to meet your drilling needsTwist drill bitEquipped with a twist drill bit for positioning, you can use the HSS cutter more efficiently and precisely Unique 90 designThe countersunk head drill bit adopts proper cutting angle design, rust and corrosion resistance, exquisite chamfering, large core diameter , a balance between edge strength and sharpening resistance, increased tool rigidity and milling cutting and cutting ability, making work more efficient.HSS Countersunk Drill Bit 6542The chamfer cutter adopts the proper inclination angle design, anti-rust and anti-corrosion, beautiful and delicate, giving the sharp edge cutter strength and rigidity< p>Package List6 x Deburring Cutter: 20.5 mm, 16.5 mm, 12.4 mm, 10.4 mm, 8.3 mm and 6.3 mmScope of delivery: 6 pieceslucky meetNote: The data is manual measurement, please allow 1-60cm error, due to the light and screen differences , there will be a certain color difference, the specific received in kind prevail.