Swiss Precision Since 1961 

How Does It Work?

As the tool is being fed into the part, the blade(s) start cutting once the tip of the tool reaches the part. The tool continues to be fed until the desired countersink size is achieved, then the operator must rapid the tool out of the part. The GH-K tool provides precision cut countersinks without chatter due to the shallow radial clearance which may require controlled feed rates. Shims can be added when more aggressive feed rates are required.

View more catalogs/videos and technical information for GH-K

Countersinking tool, Heule


Chatter-free Countersinking Tool

  • Precision inserted countersink tool with a large countersink range
  • Positive geometry allows for high sheer cutting action
  • Optional blade choices come in carbide, suited for cast iron, aluminum, and other non-ferrous materials' and HSS-Cobalt coated for stainless and steel applications 
  • Replaceable, re-grindable blades make this an economical choice
  • Can be used to conventional mill chamfers around the perimeter of a larger hole or entire part
  • Short radial clearance reduces chatter and improves surface finish
  • Three-bladed tools suited for manual or CNC machine applications while the economical single-bladed tool is designed for all machining centers 

Available from stock for immediate delivery in sizes
from 3 mm to 45 mm (0.118" to 1.771")

GH-K Countersinking Tool Catalog

How Do I Order a GH-K Tool? 

View Catalog

1. Select the appropriate tool body based on the required countersink size.
2. Select the appropriate blades based on the material and desired countersink angle.

NOTE: Choose the triple bladed tool in all manual feed operations.

Questions? Contact Your Local Sales Agent

Need help selecting a tool? Visit our online Tool Selector and go to the Locate Agent page on our website to find your local technical sales representative. For more assistance, contact us at or 513-860-9900 and we'll be happy to point you in the right direction.