Product details: Features: Carbide steel material is preferred, which is harder than ordinary drill bits and more resistant to wear. Four-blade design, small incision resistance and small incision resistance, precise and effortless punching. The surface of the drill body is treated by centerless grinding, and the chip removal is smoother. The shank of the drill bit is cut into a solid hexagon, which makes the electric drill clamping more secure and the drill hole less slippery. Specification: Name: Multi-function triangle drill Material: Carbide Colour: Black Size: 4mm/5mm/6mm/8mm/10mm/12mm (optional) Features: Carbide, versatile Compatible equipment: lithium drill/hand drill/bench drill Uses: glass, ceramics, vitrified tiles, all-ceramic tiles, brick walls, wood, plastic Note: Lithium electric drills lower than 24V are not recommended for use, and they cannot be scored without sufficient strength. When perforating walls, you must change the position of the rebar, otherwise it will cause the edge to collapse. Vitrified tiles, all-ceramic tiles, and granite need to be cooled with water Package list: 1 multi-function triangle drill Excellent product quality, stylish appearance design, effective use effect, product production goes through a strict screening process The product is of good quality, durable, precise in size, and full of design Use simple small objects to greatly improve the quality of life Please read the item description carefully to understand the size of the product and the content of the package The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness