Calidad 1/2" Diamond Core Drill Bit for Electric Drills "Needle D's 2.0"

Needle D's 1/2 inch for Electric Drills

Universal Vacuum Brazed Diamond Core Drill Bits 

These half-inch solid steel, diamond-tipped drill bits are designed in the latest dry-cut technology. New and improved diamond core bits offer longer life, smaller holes, and minor cutting while avoiding damaging the tool or the workpiece. 

• Vacuum Brazed Diamond Technology - High-strength diamonds for faster tile drilling; excellent for drilling clean holes to hard materials, especially tiles, porcelain ground, granite ceramic 
• Details - Diamond coating enhances the drilling speed; Depth mark is helpful for the particular project; includes a portable plastic storage case for convenient use and storage.
• Start Tip - Exact start tip for a minimal bit of walking 
  
• Pressure - Ideal for relieving pressure on specific cuts 
• Dry Drilling Design - Heavy Duty Diamond Drill Bit is integrated with wax lubricant inside, which melts while dry drilling and cools the cutting surface; Water can be used as additional cooling to prolong the life of the bit. 
• Worry-Free & Assistance -- If you encounter problems using the products, don't hesitate to contact us for satisfactory customer service.