12 Degree Tungsten Carbide Hexagonal Shank Tapered Drill Rod
Diameter 25mm Taper Steel Rod
Different rock formations and rock drills require different taper
angles. When drilling with high impact hydraulic rock drills in
medium-hard to hard and abrasive rock formations, a wide taper
angle is normally used. Taper angles of 11 and 12 degrees are
normally used on modern drill rigs. For low impact rock drills and
softer rock formations, a narrow taper angle of seven degrees is
used. A 7 degree angle can also be used if bit spinning is a
problem when using 11 and 12 degree equipment. In addition, a 4, 46
degree angle is ideal for soft rock when you're using pneumatic or
hydraulic drill rigs - to prevent bits from spinning or becoming
detached.
Product Description:
Taper Drill Rod is used for rock drilling, blasting holes and other
drilling situations, including quarries, coal mines, traffic and
other construction.
Normal diameter or rod is 22mm, named H22, KSQ can also make H19
and H25.
For drilling medium-hard to hard and abrasive rock formations,Taper
angles of 11 and 12 degrees are used by a hand held drill machine
like YT28B, YT29A, Y24, YT24, Mobile rock drill pneumatic and
hydraulic in underground mining and for small hole drilling,
equipped with small power rock drills, like air leg rock drills,
hand held rock drills, etc.
Drill rod is also called drill pipe, it is made by 55 SiMnMo steel.
Tapered drill rods are used in granite and marble quarry, gold
mine, railway, tunnel, etc. for drilling.Tapered drill equipment
also provides a hexagonal chuck section to provide leverage for the
rotation chuck bushing, which usually also has a forged collar to
maintain the proper shank striking face position in the rock drill,
and match a tapered bit at the socket end. Holes are typically
drilled in 0.6 m increments to accommodate the air-leg feed length.
Product Advantage:
Taper Drill Steel is mainly used in small-hole drilling, such as
stone quarrying, foundation drilling, tunneling, underground
mining, road cutting, and trenching and so on, It can reduces the
expense of impact energy, improves the drilling speed and
efficiency, which can be used for drilling bore hole diameter from
23mm to 45mm usually.
Hexagonal Shank 25*108mm Taper Drill Steels
| Product name | Hex Taper drill rods |
| Material | High quality carbide and steel |
| Process | Forging |
| Usage | Rock drilling, coal mining and geological drilling |
| Taper degree | 12 degree |
| Length | 4270mm |
| Weight | 17.72kg |
| Shank | H25*159mm |
| Delivery | 1-5 days for sample, batch products depend on order quantity |
| Packaging | Bundled with steel wire, 5 pieces are bundled together or as
client's requirement |
| Shipping | Samples are shipped by express, batch products are shipped by sea
or by air |
Specification of Other Integral Drill Steels:
| MIROC Small Hole Drilling Tools |
| Taper Tools 12 Degree, Hex Tapered Rod, Shank 25x 159mm |
| Length | Weight | Part Number | Product Code |
| mm | ft | kg |
| 1830 | 6 | 7.96 | 4148300305 | H25-12D-1830 |
| 2435 | 8 | 10.38 | 4148300306 | H25-12D-2435 |
| 3050 | 10 | 12.84 | 4148300307 | H25-12D-3050 |
| 3655 | 12 | 15.26 | 4148300308 | H25-12D-3655 |
| 3965 | 13 | 16.5 | 4148300309 | H25-12D-3965 |
| 4270 | 14 | 17.72 | 4148300310 | H25-12D-4270 |
| 4880 | 16 | 20.16 | 4148300311 | H25-12D-4880 |
| 5530 | 18 1/7 | 22.76 | 4148300312 | H25-12D-5530 |
| 6095 | 20 | 25.02 | 4148300313 | H25-12D-6095 |
The MIROC® Rock Drilling Tools product line by KSQ Technologies (Beijing) Co.Ltd.
is the result of years of advanced engineering, precision
manufacturing, and dedication to the use of high-quality materials.
Our productions are used by many drilling professionals related to
mining, construction, tunneling, and quarrying projects around the
globe.
