M40-146 DTH Drill Hammer Bit
Product Description
DTH Drill Hammer Bit M40-146
Product Description
CODE NO. | M40-146 |
Shank type | M40 |
Diameter | 146 |
air holes | 2 |
gauge buttons | 7 |
face buttons | 7 |
Bit face type | Convex |
carbide design | Dome, Ballistic |
M shank DTH drill bit with convex face, 7 dome 7 ballistic carbide buttons for blasting bore holes, water well drilling
Shank types: M 30, M 40, M 50, M 60/65, M 380.
DTH rock drill bits hole diameter: 3'', 4'', 5'', 6'', 8''(85mm-305mm)
ROSCHEN is rock drilling tools manufacturer, we offers a comprehensive range of DTH drill bits with M shanks type for a wide range of hole sizes, which have been designed to match all conceivable applications for water well industries, mining and construction.
Convex Face
A classic design for soft to medium hard rock formation which is not so abrasive. This design have very excellent penetration rate but poor in hole deviation if rocks are hard.
For high penetration rates in soft to medium-hard with low to medium air pressures. It is the most resistance to steel wash, and may reduce the load and wear on the gauge buttons, but poor hole deviation control.
Dome/Hemispherical Buttons
Universal buttons for all rock formation, best suited to hardest and very abrasive rock formation.
Semi-Ballistic/Parabolic Buttons
Excellent penetration rate, but only suited to medium hard and not so very abrasive rock formation.
ROSCHEN DTH hammer
With professional manufacturing experience in DTH hammer production, our factory can supply you with high pressure and medium to low pressure DTH hammers. It strictly matches with API standard and other Chinese industry standard. It is durable for being produced with advanced craftwork and good material.
It also has the following advantages:
1. Deliver maximum energy to drilling bit, fast drilling speed and low air consumption due to the special inner structure of HD series DTH hammer designed according to newest rock drilling theory.
2. Smooth performance and long service life of HD series DTH hammer due to high quality alloy steel materials and advanced processing technology adapted.
3. Low problem rate and easy to maintenance due to simple, reliable and easy assemble and disassemble inner structure of hammer.
4. Easy to depart bit from hammer due to multi—head thread connecting chuck and cylinder of hammer.
5. Interchangeable with DTH bit and drill pipe