7.94mm
For: BROTHER（兄弟）DB2-B714-3.B753.B795-013
      JUKI（重机）DDL-127.227.541.555.5550
      FEIYUE（飞跃）GC15-1,-2,-4
      SIRUBA（高林）L818F-K1,-L1,-M1
      TYPICAL（标准）GC40-1,-2,-4,GC6-1
      JACK（杰克）JK8500

梭尖耐撞、无毛刺，减少断线率 DB*1/DP*5 
9～20#