We, SUNGWON Heavy Machinery, have been manufacturing and supplying rock,
soil drilling equipment and tools of DTH Hammers, Hammer Bits and Auger
Machines in Korea.

SUNGWON Product
BIT

Standard Specification
RING BITS

RING BIT STANDARD SPECIFICATION
| Type |
|---|
| **DRA |
| **CIP |
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 406 | 457 | 475 | 508 | 558 | 609 | 658 | 711 | 812 | 862 | 914 | 1,016 | 1,066 | 1,219 |
| 406 | 457 | 475 | 508 | 558 | 609 | 658 | - | - | - | - | - | - | 1,219 |