Deep hole drilling may seem difficult, but these simple steps from Manfred Lenz can help make it a trouble-free operation.

Video Takeaways

  • Use shrink fit or hydraulic chucks to hold your drills; this is the absolute best and keeps your run-out tight.  
  • You need a minimum of 30 Bar/435 PSI of coolant pressure.
  • Create a pilot hole that's the exact same diameter of the long drill.
  • Once you reach your final depth with the long drill, reduce your RPMs to 500 and feed out of the hole 4-5 times the feed rate used on the way in.  

To view the full offering of deep hole drilling products from SECO, visit

Talk to Us!

Leave a reply

Your email address will not be published. Required fields are marked *


Signing into Better MRO is easy. Use your username / password, or register to create an account. We’ll bring you back here as soon as you’re done.

Redirecting you in 5 seconds