PZAG
Counterboring Cutter
The PZAG counterboring cutter is designed to achieve perfect chip control. When counterboring a pre-drilled hole, cutting chips are continuously discharged, which can easily entangle the tool or holder, interrupting machining and even scratching the surface of the workpiece. The insert breaker used in the PZAG is a muscle breaker that rises significantly against the cutting edge, achieving outstanding chip breaking performance. This optimizes the shape of the chips, thus enabling stable and uninterrupted machining. Additionally, the bottom of the machined counterbore hole can also be made flat. The PZAG lineup offers a wide range of sizes for counterbore holes compatible with hexagon socket head bolts and is suitable for a wide range of applications.
Dimensions of counterbore and bolt hole with hexagon socket head bolt
Features
Muscle breaker that achieves outstanding chip breaking
Enables the machining of flat-bottom holes
Excellent chip evacuation by internal coolant
Inserts that can be used in common with the PDZ indexable flat drill and PMD multi-function cutter
Applications
Mild Steel・Carbon Steel・Low Carbon Steel・Alloy Steel・Die Steel・Stainless Steel・Cast Iron・Ductile Cast Iron・Aluminum Alloy・Superalloy (Wet)・Titanium Alloy(Wet)・Pre-hardened Steel（40~43HRC）・Hardened Steel（50~55HRC）
Lineup
Straight Shank Type
- φ14～φ48
Bore Type
- φ54～φ82
Others
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The product lineup also includes the PDZ for stable flat-bottom hole machining, the PMEN for front and back chamfering, and the PLDS, which can perform chamfering, centering, and V slotting.
Data
Counterboring in S50C
In the counterboring of a M16 cap bolt, excellent chip breaking was performed, enabling consecutive processing.
