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 Performance USF

Router

 General PCBs 171RN
Excellent Hole Wall Quality UHQ Long-life Type C5TR、151RH
FPC A129FP Excellent Routing Quality 141HFR
FPC/PTFE 161R、111R
Metal Base Board G129MB
High Multi-layer Board USF Metal Base Board 162RA、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 Performance USF

Router

 General PCBs 171RN
Excellent Hole Wall Quality UHQ Long-life Type C5TR、151RH
FPC A129FP Excellent Routing Quality 141HFR
FPC/PTFE 161R、111R
Metal Base Board G129MB
High Multi-layer Board USF Metal Base Board 162RA、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 Performance USF

Router

 General PCBs 171RN
Excellent Hole Wall Quality UHQ Long-life Type C5TR、151RH
FPC A129FP Excellent Routing Quality 141HFR
FPC/PTFE 161R、111R
Metal Base Board G129MB
High Multi-layer Board USF Metal Base Board 162RA、163R、162R