SD4 DTH BIT 165mm Longer Life and Reliability for Down The Hole
Percussive Drilling
Down the Hole (DTH) Percussive Bits
Roschen's robust DTH bits are designed to extend bit life and
in-hole drilling time with hardened premium steel alloy and
tungsten carbide bits. Optimized flushing holes and multiple face
designs provide the ideal design for each application. Roschen's
DTH Bits use shank and spline configurations matching most
industry-trusted DTH hammers.
Maximum Performance & Durability
Roschen's DTH bits are the highest quality in the industry,
providing long life and reliability. The bits utilize premium
hardened steel alloy for the bit body and premium tungsten carbide
button inserts to provide exceptional durability and more time down
the hole. The hardened steel properties improve shank wear
resistance and manage bit body wash. The Tungsten carbides allow
for multiple re-sharpenings and overall longer bit life.
Multiple Shank Designs
Roschen offers several different shank configurations for use with
the most popular industry DTH hammers. This includes different
spline counts, diameters and lengths. The bits include foot valves
where required.
Optimized Product Offering
Roschen has developed bits with a wide range of gauge diameters,
various face configurations, and flushing hole geometries to
provide the right design for the application need. Utilizing long
standing bit design strategies, the new offering is sure to provide
the right bit for any specific application.
Product Features:
1. Premium hardened steel alloy
2. Premium tungsten carbide buttons
3. Optimized flushing holes
4. Multiple shank and face designs
5. Various face and spline configurations
| 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! |
| SD4 |
| FLAT FACE |
| DIAMETER | FLUSH HOLES | BUTTONS DIA X QTY | WEIGHT | PRODUCT NO |
| MM | INCH | OUTER | FRONT | KG | LBS |
| 105 | 4 1/8 | 2 | 14X8 | 12X6 | 8 | 17.63 | 36-41967105S |
| 110 | 4 5/16 | 2 | 14X8 | 12X6 | 8.5 | 18.73 | 36-41967110S |
| 115 | 4 1/2 | 2 | 14X8 | 12X6 | 9 | 19.83 | 36-41967115S |
| 121 | 4 3/4 | 2 | 14X8 | 12X7 | 9.3 | 20.49 | 36-41977121S |
| 127 | 5 | 2 | 14X8 | 14X8 | 9.5 | 20.93 | 36-41989127S |
| 130 | 5 1/8 | 2 | 14X8 | 14X8 | 10 | 22.04 | 36-41989130S |
| 165 | 6 1/2 | 2 | 16X8 | 14X10 | 26 | 57.32 | 36-4190C165S |
| CONCAVE |
| 105 | 4 1/8 | 2 | 14X8 | 12X6 | 7.8 | 17.19 | 36-41767105S |
| 110 | 4 5/16 | 2 | 14X8 | 12X6 | 8.3 | 18.29 | 36-41767110S |
| 115 | 4 1/2 | 2 | 14X8 | 12X6 | 8.7 | 19.17 | 36-41767115S |
| 127 | 5 | 2 | 14X8 | 14X7 | 9.2 | 20.27 | 36-41779127S |
| 130 | 5 1/8 | 2 | 14X8 | 14X7 | 9.7 | 21.37 | 36-41779130S |
| CONVEX |
| 105 | 4 1/8 | 2 | 14X8 | 12X6 | 8 | 17.63 | 36-41867105S |
| 110 | 4 5/16 | 2 | 14X8 | 12X6 | 8.5 | 18.73 | 36-41867110S |
| 115 | 4 1/2 | 2 | 14X8 | 12X7 | 9 | 19.83 | 36-41877115S |
| 127 | 5 | 2 | 14X8 | 14X8 | 9.5 | 20.93 | 36-41889127S |
| 130 | 5 1/8 | 2 | 14X8 | 14X8 | 10 | 22.04 | 36-41889130S |
FAQ
The information about dth drill bit you may like to know before
order:
1. Methods of Payment:
T/T (Telegraphic Transfer) or Western Union or L/C at sight
2. Handling time for an order
Based on order quantity, normally it takes 20 days for production.
in 3 working days after receiving the advance payment
3. Shipping way
Sample order: we suggest Courier express like DHL/UPS/TNT/FEDEX or
by air
Bulk order: we suggest by air or by sea.
4. Quality Control
We have our own experienced QC.
There will be strict inspection and testing for every order before
shipping out.
5. After Services:
a. Our sales team will response for your question within 24 hours
(Holidays Excluded)
b. Technical Support will be available in any time
6. Quality & Service:
A. There will be strict inspection and testing for every order
before shipping out.
B. Our sales team and Technical Support will response for your
question within 24 hours through skype: ROSCHEN.TOOL and
WhatsApp/Wechat: +86-13764195009
C. Free replacement will provide once the failure confirmed caused
or our product quality.
For more information, please contact:
ROSCHEN INC.
ROSCHEN GROUP LIMITED
ROSCHEN HOLDINGS LIMITED
Skype: ROSCHEN.TOOL , ROSCHEN_GROUP
WeChat: +86-137 6419 5009 ; +86-135 8585 5390
WhatsApp: +86-137 6419 5009 ; +86-135 8585 5390
Email: roschen@roschen.com ; roschen@roschen.net
Website: http://www.roschen.com ; http://www.roschen.net
http://www.roschen.cn ; http://www.roschendrill.com
http://www.roschenmining.com ; http://www.roschendrilling.com
http://www.roschengroup.com
