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Top Drill's down the hole button bits provide more cutting power and faster penetration rates with an efficient position of carbide buttons
Feature
- Supplying other shank bits as well as TD design shank
- Supplying oversize drill bits and custom design bits
- Standard DTH Bits is a standard grade of carbide inserts
- Premium DTH is a premium grade of carbide inserts
- Bit Face Design - Flat Face / Concave Face / Convex Face / Double Step Face
DTH Bits Specification
|
Bit Diameter (mm)
|
Weight (kg)
|
Standard TD Hammer
|
Hammer Outside Diameter(mm)
|
|
2 5/8" (66)
|
2
|
TD20
|
58
|
|
3" (76)
|
3
|
|
3 3/4" (95)
|
5
|
ACE35
|
65
|
|
3 7/8" (100)
|
5
|
|
4 1/8" (105)
|
8
|
ACE40
|
98
|
|
4 1/2" (115)
|
8
|
|
5" (127)
|
9
|
|
5 1/2" (140)
|
17
|
TD50
|
116
|
|
5 3/4" (146)
|
18
|
|
6" (152)
|
25
|
ACE60
|
142
|
|
7" (178)
|
27
|
|
8" (203)
|
30
|
|
7 5/8" (194)
|
50
|
TD80
|
180
|
|
8 1/2" (216)
|
56
|
|
10" (254)
|
65
|
|
10" (254)
|
105
|
TD100
|
225
|
|
12" (305)
|
120
|
|
11 7/8" (302)
|
145
|
TD112
|
274
|
|
15" (381)
|
230
|
|
15" (381)
|
300
|
TD320
|
320
|
|
17 1/2" (445)
|
340
|
|
17 1/2" (445)
|
360
|
TD350
|
357
|
|
20" (508)
|
500
|
|
20" (508)
|
565
|
TD450
|
400
|
|
22" (559)
|
620
|
|
24" (610)
|
730
|
|
24" (610)
|
985
|
TD550
|
520
|
|
26" (660)
|
1,060
|
|
33" (838)
|
1,500
|
|
38 3/8" (975)
|
2,350
|
TD700
|
650
|
|
33" (838)
|
2,275
|
TD800
|
758
|
|
36" (914)
|
2,410
|
|
40" (1016)
|
3,420
|
|
43" (1092)
|
3,550
|
| Other styles are available upon request. |
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