Centering is adjustable and quick drilling is abandoned
GFDY 捨棄式快速鑽頭
GFDYSP GFDYSP 捨棄式快速鑽頭Replacement quick drill bit
GFDYWC GFDYWD
TY TY深孔鏟鑽 deep hole shovel drill
GF2VY Centering is adjustable and quick drilling is abandoned
DYXREC High Speed Drill Connecting Rod
XVY XVY捨棄式留心鑽頭
GFTWY GFYTW捨棄沉頭倒角鑽