World’s Smallest Boring Head?
With a diameter range of 0.016” to 0.276”, this boring head is well-suited for a variety of micromachining applications.
Share




says it has produced the industry’s smallest finish boring head. Its EWN 04-7 series is designed for use on micro-milling machines with high speed spindles such as HSK-E25, E32 and E40 models.
This boring head has a diameter range of 0.016" to 0.276". It features a high-precision adjustment accuracy of 0.0005"/diameter or 0.0001"/diameter with the use of a Vernier scale. The head is available with the Kaiser KA1 modular connection or with a 10-mm-diameter straight shank, and can accept boring bars with 4-mm-diameter shanks. Maximum through-tool coolant pressure is 300 psi. High rigidity and secure clamping of the boring bar makes it well-suited for many micromachining applications including those that require small-diameter boring deep inside cavities.
Learn about other micro-milling solutions in our Micromachining Zone.
Related Content
-
Walter Drilling Inserts Provide Extended Tool Life
The P6006 indexable inserts are said to be ideal for holemaking without a pilot drill up to 10×Dc.
-
Heule Cutting Tool Provides Chatter-Free Countersinks
PMTS 2025: GH-K tooling is well suited for conventional milling of chamfers around the perimeter of larger holes or entire parts.
-
Measuring Torque, Thrust Force for Smart Drilling Operations
To monitor drilling operations for smart manufacturing solutions, torque and thrust force can be measured.