Shape Type Size Geology Position of the cutter head
Single Cutter
(Changeable Disc Ring)
8” ~ 19” Hard Rock,
Mixed Ground
Face area,
Gauge area
Double Cutter
(Changeable Disc Ring)
10” ~ 17” Hard Rock,
Mixed Ground
Center area
One Body Cutter 10” ~ 19” Mixed Ground Face area,
Gauge area
Twin Cutter 10” ~ 17” Hard Rock,
Mixed Ground
Center area
Button Bit Cutter
(Tungsten Carbide)
8” ~ 17” Hard Rock,
Mixed Ground
Face area,
Gauge area

※Special size is available upon request / Specifications are subject to change without notice