The crown-type back-pull drill insert is a replaceable insert designed for internal chamfering, reverse deburring, and back-side contour machining.
With a unique crown-shaped cutting edge, it provides excellent stability and smooth chip removal during back-pull operations.
It is widely used in precision machining fields such as medical devices, molds, automotive parts, and aerospace components.
Back-pull cutting structure
Enables reverse chamfering from the inside of the hole without flipping the workpiece.
Crown-style cutting geometry
Enhances cutting stability and improves chip evacuation.
Replaceable insert design
Reduces overall tooling cost and improves convenience.
High-performance materials
Available in carbide, powder high-speed steel, or premium alloy steel for long tool life.
High dimensional accuracy
Suitable for demanding CNC machining tasks requiring consistent tolerances.
No need to turn the workpiece over, saving machining time.
Ideal for internal chamfering, back-side deburring, and special hole-form machining.
Excellent wear resistance and long service life.
Stable and smooth cutting performance in stainless steel, alloy steel, tool steel, and other difficult materials.
Clean surface finish and reduced burrs.
Medical device hole machining
Mold and die industry precision hole processing
Automotive component internal chamfering
Aerospace parts deburring
Any machining requiring internal or reverse-side chamfering