Recent Entries

• DEEP HOLE MACHINING CHIP REMOVAL SOLUTION

  by ZJNB rongke 12 July 2022
    U Drill Bit is one of our products. Let me introduce the solution for deep hole machining chip removal. 　　Generally, the hole depth is more than 3 to 5 times of the diameter of the hole, which is called a deep hole. Its difficulty is in chip removal and cooling. The hole with a relatively s...

• HOW TO CHOOSE A GOOD DRILL

  by ZJNB rongke 15 June 2022
  Saber Tooth Drill is one of our products, let me share with you some tips for choosing drills according to different purposes! 　　Twist drills are generally made of high-speed steel; deep-hole drills usually refer to tools that process holes with a ratio of hole depth to hole diameter greater t...

• WHAT IS A SPADE DRILL?

  by ZJNB rongke 22 May 2022
  We are a professional Deep Hole Drill Manufacturers, let us share the knowledge of shovel drilling. 　　Spade drill is an improved tool based on U drill. The equipment used is wide (can be used in radial drill, vertical drill, bed, machining center and other equipment) and does not require high rigid...

• The correct way to use the U drill

  by ZJNB rongke 30 March 2022
  On CNC lathes, the advantages of U-drilling are high processing efficiency, simple use and relatively low cost. Its processing efficiency is generally 2-3 times that of a twist drill, and it can be processed directly on the workpiece without the need for center drilling and pilot holes. The front en...