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Union Tool Classic Program
Sponsor of NHK Symphony Orchestra, Tokyo
Sponsor of Tokyo Phil Harmonic Orchestra
Sponsor of New Japan Phil Harmonic Orchestra
Sponsor of Pianist "Ikuyo Nakamichi" Web site
Sponsor of Pianist "Ikuyo Nakamichi" Fan club
Technical Information
What's New
Standard PCB Tool Evaluation
Hole Registration Accuracy
Roughness of Hole Wall
Tool Breakage Life
Bird Nesting
Swarf (Chip) Evacuation
Diameter Wearing Amount
Cutting Edge Condition
Burr
Resin Smear
Nail Head
Hole Diameter
Troubleshooting
Hole Registration Accuracy
Roughness of Hole Wall
Drill Bit Breakage
Bird Nesting
Swarf Clogging
Wearing
Burring
Resin Smearing
Nail Heading
Non piercing / Over piercing
PCB Drill Related Equipment
Types of Drill
Micro Drill Series(ø0.075-0.25)
Small Diameter Series(ø0.3-0.55)
Other Series(ø0.3-6.5)
Drill bit Cutting Parameters
Router bit Cutting Parameters
For FR-4 Material
For FR-4 Material <Good Swarf Evacuation Condition>
For BT-resin Material
PCB Test Facilities
Troubleshooting for Re-pointing
Excessive re-pointing amount and wear
Incomplete re-pointing (Worn part not removed)
Chisel Point Inconcentricity
Flute Spacing Error
Offset
Gap or Overlap
Chipping
Layback or Hook
Primary Flare or Primary Taper
Drill Manufacturing Process
Update History
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