131--Standard PCBs

Performance 

  1. Drill diameter is larger  than the shank diameter.
  2. The maximum driil diameter is 6.50 mm.
Recommendation

Drill

Overall PerformanceUSF

Router

General PCBs171RN
Excellent Hole Wall QualityUHQLong-life TypeC5TR、151RH
FPCA129FPExcellent Routing Quality141HFR
FPC/PTFE161R、111R
Metal Base BoardG129MB
High Multi-layer BoardUSFMetal Base Board162RA、163R、162R

131CB--Standard PCBs

Performance 

  1. Drill diameter is larger  than the shank diameter(3.175 mm)，the maximum drilling diameter is 6.50 mm；
  2. These drills have additional chip breaker to reduce drilling resistance and improve chip removal condition,
Recommendation

Drill

Overall PerformanceUSF

Router

General PCBs171RN
Excellent Hole Wall QualityUHQLong-life TypeC5TR、151RH
FPCA129FPExcellent Routing Quality141HFR
FPC/PTFE161R、111R
Metal Base BoardG129MB
High Multi-layer BoardUSFMetal Base Board162RA、163R、162R

131CB-A --Standard PCBs

Performance 

  1. Drill diameter is larger  than the shank diameter(3.175 mm)，the maximum drilling diameter is 6.50 mm；
  2. These drills have additional chip breaker to reduce drilling resistance and improve chip removal condition,
Recommendation

Drill

Overall PerformanceUSF

Router

General PCBs171RN
Excellent Hole Wall QualityUHQLong-life TypeC5TR、151RH
FPCA129FPExcellent Routing Quality141HFR
FPC/PTFE161R、111R
Metal Base BoardG129MB
High Multi-layer BoardUSFMetal Base Board162RA、163R、162R