اسم العلامة التجارية
كينغدريم ، ديريس ، كس ، تز
formation
soft to hard formation
Used Warranty
life hours is 100h and the meter is 1000m
Bearing type
metal seal roller bearing
Teeth type
Milled/steel tooth
Drilling speed
150~70 r/min
Normal WOB KN/mm (bit dia)
0.35~0.90
Colour
blue,Golden,red as your need