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| Place of Origin | China |
| Brand Name | ROSCHEN |
| Certification | ISO |
| Model Number | 3 4 5 6" |
HALCO REVERSE CIRCULATION DRILL BITS
Halco Reverse Circulation Drill Bits For Water Well Drilling
Reverse Circulation Bits / RC Bits Fast Drilling Geothermal Hole Drilling
Roschen range of high quality Reverse Circulation RC drill bits were specifically designed to work with our RC Hammers. Because of our drill bit sealing mechanism, sample contamination problems are not an issue. Using our unique 12 spline shank design, these RC Bits provide outstanding performance and reliability.
Features:
1. Using higher grade carbides for longer life;
2. Minimizes hole erosion in fragile formations
3. Drills faster through soft formations with less blockages
4. Drills straighter through consolidated and unconsolidated formations
| RC400 HAMMER DRILL BITS | ||||||
| Bit | Diameter | Face | Buttons | Weight | ||
| Part No | mm | inch | Design | Type | Qty | ( kgs ) |
| 653469 | 127 | 5 | Drop Centre | Domed | 12 x 16 mm / 2 x 13 mm | 14.1 |
| 653470 | 130 | 5 1/8 | Drop Centre | Domed | 12 x 16 mm / 2 x 13 mm | 14.1 |
| 653471 | 133 | 5 1/4 | Drop Centre | Domed | 12 x 16 mm / 4 x 13 mm | 14.3 |
| 653472 | 136 | 5 3/8 | Drop Centre | Domed | 12 x 16 mm / 4 x 13 mm | 14.3 |
| 653486 | 189 | 7 1/2 | Drop Centre | Domed | 16 x 16 mm / 10 x 13 mm | 36.5 |
| SHROUDS | ||||||
| Part No | Outside Diameter | |||||
| 604602 | 125 mm | |||||
| 604603 | 128 mm | |||||
| 604604 | 131 mm | |||||
| 604605 | 134 mm | |||||
| 601423 | 187 mm | |||||
| RC500 HAMMER DRILL BITS | ||||||
| Bit | Diameter | Face | Buttons | Weight | ||
| Part No | mm | inch | Design | Type | Qty | ( kgs ) |
| 653543 | 137 | 5 3/8 | Drop Centre | Domed | 12 x 16 mm / 2 x 13 mm | 27.4 |
| 653544 | 140 | 5 1/2 | Drop Centre | Domed | 12 x 16 mm / 2 x 13 mm | 27.6 |
| 653545 | 143 | 5 5/8 | Drop Centre | Domed | 12 x 16 mm / 4 x 13 mm | 27.8 |
| 653546 | 146 | 5 3/4 | Drop Centre | Domed | 12 x 16 mm / 4 x 13 mm | 28 |
| 653487 | 189 | 7 1/2 | Drop Centre | Domed | 16 x 16 mm / 10 x 13 mm | 40 |
| SHROUDS | ||||||
| Part No | Outside Diameter | |||||
| 604624 | 135 mm | |||||
| 604625 | 138 mm | |||||
| 604626 | 141 mm | |||||
| 604627 | 144 mm | |||||
| 601425 | 187 mm | |||||
| ROSCHEN DTH Bits Specifications | ||||
| Hammer Size | Bits diameter | Shank | ROSCHEN CODE | |
| Metric | Inch | |||
| 1" | 64mm-70mm | 2 1/2"-2 3/4" | BR1 | ROS 11 |
| 2" | 70mm-95mm | 2 3/4"-3 3/4" | MACH20/BR2 | ROS 22 |
| 3" | 90mm-102mm | 3 1/2"-4" | COP32/COP34/MACH303 | ROS 32 |
| M30/DHD3.5/BR3 | ROS 34 | |||
| 4" | 105mm-152mm | 4 1/8"-6" | COP44/DHD340/MACH44 | ROS 42 |
| SD4/M40/QL40 | ROS 44 | |||
| 5" | 133mm-165mm | 5 1/4"-6 1/2" | COP54/DHD350R/MACH50 | ROS 52 |
| SD5/M50/QL50/BR5 | ROS 54 | |||
| 6" | 152mm-254mm | 4 1/8"-10" | COP64/DHD360/SD6 | ROS 62 |
| M60/QL60/Bulroc BR6 | ROS 64 | |||
| 8" | 203mm-330mm | 8"-13" | COP84/DHD380/SD8 | ROS 82 |
| QL80/M80/M85 | ROS 84 | |||
| 10" | 254mm-380mm | 10"-15" | SD10 | ROS 100 |
| NUMA100 | ||||
| 12" | 305mm-508mm | 12"-20" | DHD1120/SD12 | ROS 120 |
| NUMA120/NUMA125 | ||||
| Notes: Any special size of DTH bits will be available by requests. | ||||
| Metzke, Remet thread is available! | ||||
Further exploration drilling products information, please don't hesitate to contact us.
ROSCHEN INC.
ROSCHEN GROUP LIMITED
ROSCHEN HOLDINGS LIMITED
Skype: ROSCHEN.TOOL , ROSCHEN_GROUP
Email: roschen@roschen.com ; roschen@roschen.net
Website: http://www.roschen.net ; http://www.roschen.cn
http://www.roschen.com ; http://www.roschengroup.com
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