TOPDRILL

CONTACT USE-BOOKKOREAENGLISH

  • HOME
  • Company
    • About us
    • Brief History
    • Location
  • Products
    • Hammer
    • DTH Bits
    • Overburden Drilling Systems
    • Tornado Hammer
    • Accessory
  • Technology
    • Certification & Patent
    • Facility
  • Project
    • JOB Site
    • Product Performance
  • Notice
    • NEWS

DTH BITS

HOME > DTH BITS > DTH BITS

down the hole bit

   down the hole bit

    Topdrill DTH Bits provide more cutting power and faster rates with heat treatment and tightly controlled machining tolerances.
    The biggest DTH Bits in the world have been performed successfully on job sites.
  Specifications

Bit Diameter (mm)l Weight (kg) Standard
Hammer
Hammer
Outside Diameter (mm)
2 3/4" (70) 2.5 ACE20 62
3 1/8" (80) 2.7
3 3/4" (90) 4.6 ACE30, ACE35 79, 85
3 7/8" (100) 5.4
4 1/8" (105) 8.4 ACE40 98
4 1/2" (115) 9.2
5" (127) 10.3
5 1/2" (140) 17.3 ACE50, TD50 121, 116
5 3/4" (146) 18.0
6 1/2" (165) 27.6 ACE60 142
6 3/4" (172) 30.4
7 1/2" (191) 33.5
7 7/8" (200) 52 ACE80 182
8 1/2" (216) 56
9 1/2" (241) 62
10" (254) 83 TD100 225
11 7/8" (302) 107
12 1/4" (311) 144 TD112 274
15" (381) 198
15" (381) 255 TD320 320
17 1/2" (445) 340
18" (457) 372 TD350 357
20" (508) 470 ACE380 376
21 5/8" (550) 532
22" (559) 588 TD450 400
23 5/8" (600) 648
24" (610) 670
30 1/2" (775) 1,290 TD550 525
31 1/2" (800) 1,334
38 3/8" (975) 2,350 TD700 650
40" (1016) 3,420 TD800 758
43" (1092) 3,550
46 1/4" (1175) 3,634

Others shank type or size is available with customer's request