GDP|GUHDO Tool Holders can be Run Bi-Directional

Static nut (left) and Ball Bearing collet nut (right)

Static nut (left) and Ball Bearing collet nut (right)

Need to run a tool counter-clockwise and think you need a left-hand tool holder? Not necessarily! In case you didn’t know, ball-bearing collet nuts on HSK/ISO toolholders make the need for a left-hand tool holder obsolete! And if you are not sure if you are using collet nuts with a ball bearing, the attached photo shows the difference. The one on the right is a two-piece construction which houses the ball bearing. The one on the left is a simple static nut that cannot be run in a counter clockwise rotation and for which you need a complete new tool holder since the threads on the tool holder would not allow you to just change out the nut.

Another advantage of ball bearing collet nuts on your tool holders is the elimination of tool slippage problems. All GUHDO tool holders are all Made in Germany with the ball bearing collet nut included.

To buy HSK63F tool holders now, click here

How to Ensure your Tools are Safely Clamped in the Tool Holder

Over-tightening your collet nut can lead to collet distortion, tool runout and breakage, while not tightening enough can lead to tool slippage or worse. The best solution to avoid either scenario is to use a torque wrench which will provide an accurate torque measurement when tightening the collet nut.

Torque Wrench

Torque Wrench

The torque wrench consists of a spanner wrench handle and collet key that correlates to the collet style being used. The appropriate clamping torque recommendations for the most popular collets used in wood and plastics machining are as follows:

  • RDO35 (SYOZ25) collets 90ft/lbs
  • ER 32 collets 100 ft/lbs
  • ER 40 collets 130 ft/lbs

For more information on tool holder you might want to check out this article on the importance of using a ball bearing collet nut.  All GUHDO tool holders are bi-directional and they come with a ball bearing collet nut standard. Contact us now for more information.