Problem: The Cost of Secondary Finishing
Many industrial workshops suffer from "rough" holes. When a drill
produces burrs or an inaccurate diameter, workers have to spend
extra time deburring or reaming the hole so that bolts can fit. In
high-precision assembly, a hole that is even 0.1mm out of round can
lead to structural rejection and massive financial loss.
Cause: Vibration & Asymmetrical Cutting
Inaccurate holes are usually caused by asymmetrical grinding. If
one cutting tooth is slightly higher than the others, the tool will
"walk" or vibrate. This vibration creates a jagged surface finish
and forces the hole to become oversized, making it impossible to
achieve a precision fit.
Solution: Full CNC Multi-Cut Geometry
We manufacture our cutters using state-of-the-art 7-Axis CNC grinding centers. This ensures every tooth is perfectly symmetrical. Our unique Three-Stage Cutting Geometry shears the metal in layers, resulting in a mirror-like finish on
the hole wall. The precision is so high that secondary deburring is
almost never required.
Technical Parameters
Manufacturing Process: 100% Fully CNC Ground
Tooth Geometry: Triple-Edge (Internal, Middle, External)
Diameter Accuracy: +0.02mm / -0.00mm
Surface Finish: Ra 1.6 - 3.2
Concentricity: <0.05mm
Material: HSS-M2 / M35
Application: Precision Assembly & Custom Fabrication
This series is designed for aerospace ground equipment, custom
automotive chassis work, and high-end architectural metalwork. It
is the preferred choice for labs and medical device manufacturers
where every thread and bolt-hole must be perfect.
Selection Guide
When the project specification calls for "Burr-Free" or "Precision Fit," this CNC Ground series is the only choice. It is particularly
effective for thinner materials where "tearing" is a common problem
with lower-quality cutters.
Professional FAQ
Q: Why does the hole look polished?
A: Our triple-edge geometry cuts the metal cleanly rather than
ripping it, which results in a much smoother surface.
Q: Does this help with bolt alignment?
A: Absolutely. The perfect roundness ensures that bolts pass
through multi-layered plates without resistance.
Q: Is the shank also ground?
A: Yes, the Weldon shank is precision ground to ensure zero-slip
and perfect alignment in the drill chuck.
