Ring Bit

Product Introduction

Ring Bit

Ring Bit has similar function with Overburden Drill Bit but Ring Bit can be utilized on the solid ground. Mostly in Hong Kong or Taiwan, it is used with Casing for the horizontal drilling. After the drilling, the pilot bit will be retrieved but the Ring Bit is usually left inside the hole with Casing.

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SPECIFICATIONS

reverse curculation(rc) - converx ring bit system table
Model Outside Diameter(mm) Casing Outside Dia.(mm) Suitable Hammer Type
Ring bit Pilot Bit
[RC]DWRB-273 300 242 273 DW180
[RC]DWRB-323 350 292 323.8 DW220
[RC]DWRB-406 443 370 406.4 DW270
[RC]DWRB-460 500 427 457.2 DW270
[RC]DWRB-508 550 480 508 DW320
[RC]DWRB-609 645 573 609.6 DW410 / DW470
[RC]DWRB-660 725 642 660.4 DW530
[RC]DWRB-812 890 779 812.8 DW640