Including: 5 pcs Quick-fit Shank 6 MM Cross Spiral Hard Alloy Drill Bit High quality Material - Tungsten Carbide: The tip of the drill bit is welded with high-grade industrial grade tungsten carbide, which has good wear resistance and can easily penetrate various softer materials Widely applicable: Diversified available materials to fully meet the different needs of customers;It can be widely used on all kinds of wood, plastic, marble, granite, masonry, etc. without nails High quality Material - Steel Matrix: The drill body is made of selected high-strength steel matrix, which can effectively assist drilling and has a long service life Precision design: The precise crosshead design can reduce the slipping and walking of the drill bit, making drilling more stable and easy to operate; The head is equipped with spiral grooves, which are easy to remove debris 1.Usage: General purpose product, capable of drilling a variety of materials, and can assist other drills to provide more accurate drilling and positioning. 2.Applicable material description: Materials that can be drilled dry (softer materials): wood, plastic (PVC pipe), foam bricks, antique bricks, glazed bricks, red bricks, cement, concrete (need to avoid reinforcing steel), and so on; Materials to be drilled with water or coolant (harder materials): glass tiles, full ceramic tiles, ceramics, marble, glass, etc; 3.Applicable machines: 1.ordinary hand drill, table drill and rechargeable drill (lithium drill) and other types of machines to use; if you choose lithium drill, it is recommended to choose the power higher than 24V, otherwise it is easy to insufficient power to hit; 2.the drilling mode can only choose flat drilling mode, can not use the impact and hammering mode; (no need to 45 degrees oblique angle positioning, vertical drilling can be)