• The inside of the drill body contains cooling wax to cool and lubricate the drill bit. Direct dry drilling without adding water for faster, more precise drilling.
  
  
• Chip Flute Design: The cutting edge adopts a chip removal groove design to easily remove chips, easy to clean, and greatly improve the punching efficiency. Less debris, less breakage, less heat, and a good finish.
  
  
  
• Sets include common sizes and are ideal for home and professional use. Widely used for perforating ceramic tile, vitrified tiles, glass, ceramics, marble, granite, microcrystalline stone, and quartz stone.

Made of high-quality diamond and flame-retardant brazing, high hardness, rust-proof and wear-resistant, good toughness. The punching will not damage the material and drill bit at the same time, it is sharp and durable.

Using Methods

• Step1：First, tilt 45° to open the positioning slot;
• Step2：Then drill the hole vertically and shake while drilling the hole, drain debris.