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South Korea
連絡先担当者 Mr. Daehee
B 208 Hanyang Univ Total Technology Institute 17 , Hangdang dong, Seoul
Product Description
Top Drill DTH bits provide more cutting power and faster rates with
heat treatment and tight controlled machining tolerances.
Bit face design
Concave face
Concave bits are suitable for straightest holes in soft to medium
hard formations. These are most popular face designs.
Flat face
Flat face bits are designed to be suited for hard and abrasive
formations.
Convex face
Convex bits are used in hard rock formations, where penetration
rate is more important that the straightness of the hole.
Dual layer face
Dual layer bits are registered by Top Drill, the result of feedback
from the field for extracting maximum performance. Maximum drilling
effects have been gained by reducing unnecessary cutting. Dual
layer bits are best suited for Tornado hammer.
Product Specification / Models
|
Bit Diameter (mm) |
Weight(kg) |
Standard TD Hammer |
Hammer Outside Diameter (mm) |
|
4 1/8" (**5) |
8 |
TD*0 |
*8 |
|
4 1/2" (**4) |
9 |
||
|
4 7/8" (**4) |
*0 |
||
|
5" (**7) |
*2 |
||
|
5" (**7) |
*6 |
TD*0 |
**6 |
|
5 3/4" (**6) |
*8 |
||
|
6" (**2) |
*5 |
TD*0 |
**8 |
|
6 1/2" (**5) |
*0 |
||
|
7 5/8" (**3) |
*8 |
TD*0 |
**0 |
|
7 7/8" (**0) |
*0 |
||
|
8" (**3) |
*2 |
||
|
*0" (**4) |
*5 |
||
|
*0" (**4) |
**5 |
TD**0 |
**5 |
|
*2" (**5) |
**0 |
||
|
*2" (**5) |
**0 |
TD**2 |
**2 |
|
*5" (**1) |
**0 |
||
|
*5" (**1) |
**0 |
TD**0 |
**0 |
|
*7 1/2" (**5) |
**0 |
||
|
*7 1/2" (**5) |
**0 |
TD**0 |
**0 |
|
*0" (**8) |
**0 |
||
|
*0" (**8) |
**5 |
TD**0 |
**5 |
|
*1" (**3) |
**0 |
||
|
*2" (**9) |
**0 |
||
|
*4" (**0) |
**0 |
||
|
*4" (**0) |
**5 |
TD**0 |
**0 |
|
*6" (**0) |
***0 |
||
|
*8" (**1) |
***0 |
||
|
*0" (**2) |
***0 |
||
|
*3" (**8) |
***0 |
||
|
*3" (**8) |
***5 |
TD**0 |
**0 |
|
*6" (**4) |
***0 |
||
|
*0" (***6) |
***0 |
||
|
*3" (***2) |
***0 |
The above list represents a selection of standard range.
Alternative specifications are available upon request.
