Set of 4 Chair Cushions, Chair Pads, 40 x 40 cm Chair Cushions, with Ties, Chair Covers for Dining Room, Living Room, Indoors, Garden, Study, Black

Material: Titanium-coated 4241 high-speed steel (HSS). This tri-cone drill bit set is well-constructed and allows you to achieve the desired drilling diameter without having to change bits multiple times. Depending on the needs of processing holes of different diameters, a single macro-processing can be performed without changing the drill bit or the hole positioning. This drill bit is a new type of high-speed steel, large-pitch cone drill bit set, made of high-quality high-speed steel and coated with a titanium finish to reduce friction and heat. Ideal for a variety of materials, openings, and holes, including metal, aluminum, wood, plastic, and more. Can be used on thin metals, aluminum, copper, brass, PVC, etc.