【Including】10 pcs Quick-fit Shank 5 MM*2+6 MM*4+8 MM*2+10 MM+12 MM masonry tile drill bits set. The drill tip effectively reduces resistance, drills faster and more securely, and easily penetrates all applicable materials 【YG6X Cemented Carbide】It is made of high-grade tungsten carbide material, featuring high hardness, abrasion resistance and corrosion resistance 【Multiple uses】Unlike other common type drills, this carbide drill has a precision crosshead design that allows it to both drill and locate holes, avoiding slippage 【Wide range of applications】 Suitable for most ordinary electric drills, table drills and rechargeable electric drills (lithium-ion drills). Mainly used for wood, plastic drilling, can also be extended for masonry, cement, concrete, etc.; add water and tiles, ceramics, marble, glass use 【Note】Harder materials need to be used with water or coolant, otherwise its service life will be seriously affected; Any quality problems support reshipment 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)