Possible to supply other type shank bits as well as DL design shank.
Possible to supply oversized drill bits and standard drill bits as well.
DTH Bit is classified according to grade of carbide inserts, Standard and Premium.
Bit Face Design
  Concave Face Flat Face Convex Face Double step Face Concave / Convex Face



Model Bit Working Diameter mm(Ø) Shank Type Food Valve(OD)(mm)(Ø) Weight(kg)
DLH 60
( 6” )
Ø152 ~ Ø190
(6” ~ 7½”)
M 60 Ø38.0  
DHD 360
DLH 80
( 8” )
Ø195 ~ Ø270
(7¾” ~ 10½”)
DHD 380 Ø50.5  
SD 8
DLH 100
( 10” )
Ø254 ~ Ø310
(10” ~ 12¼”)
N 100 Ø56.0  
SD 10 Ø55.8
DLH 120
( 12” )
Ø310 ~ Ø445
(12¼” ~ 17¼”)
DHD 112 Ø63.5  
N120 Ø76.2
SD12 Ø62.7 ~ Ø63.5
DLH 380
( 16” )
Ø445 ~ Ø610
(17½” ~ 24”)
SD 15 Ø77.5  
DLH 410
( 18” )
Ø460 ~ Ø650
(18” ~ 25½”)
N 180 Ø93.1  
SD 18 Ø91.7
DLH 540
( 24” )
Ø610 ~ Ø850
(24” ~ 33½”)
N 240 Ø113.0  
DLH 640
( 28” )
Ø711 ~ Ø1050
(28” ~ 413∕8”)
DLH 640 Ø125.0  
DLH 750
( 34” )
Ø820 ~ Ø1300
(323∕8” ~ 513∕8”)
DLH 750 Ø142.0  
DLH 900
( 40” )
Ø1050 ~ Ø1500
(413∕8” ~ 59”)
DLH 900 Ø160.0  

※ Other size is available with customer's request.