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Special design of subslot can effectively reduce breakage and improve cutting performance and chip evacuation.
1. The design of subslot can reduce drilling axial force and copper area, incrase sutting edge and chip removal space;
2. Special UC-type design can reduce drilling friction;
3. Can reduce the drilling frictional heat and help to improve chip evacuation and breakage.
d [mm] | 0.095 | 0.105 | 0.12 | 0.15 | 0.20 |
L [mm] | 1.5 | 2.0 | 2.0 | 2.5 | 4.0 |
2.5 | 2.2 | 3.0 |
Recommendation | |||||
---|---|---|---|---|---|
Drill | Overall Performance | usf | Router | General PCBs | 171rn |
Excellent Hole Wall Quality | UHQ | Long-life Type | c5tr、151rh | ||
FPC | a129fp | Excellent Routing Quality | 141hfr | ||
Metal Base Board | g129mb | FPC/PTFE | 161r、111r | ||
High Multi-layer Board | USF | Metal Base Board | 162Ra、163r、162r |
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