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Roschen Global
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| Quantity: | |
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BR3-90
ROSCHEN
BR3-90
Product Description
DTH Drill Bit BR3-90
Product Description
CODE NO. | BR3-90 |
Shank type | BR3 |
Diameter | 90mm |
air holes | 2 |
gauge buttons | 6*13mm |
face buttons | 7*12mm |
Bit face type | concave |
carbide design | semi-ballisic |
approx. weight | 4.0Kgs |
BR shank DTH drill bit with flat face, 13 semi-ballistic carbide buttons.
Rock drill bits Shank type: BR2, BR3; and DTH drill bits hole diameter: 3'', 4'', 5'', 6'', 8''(85mm-350mm).
ROSCHEN is Rock drilling tools manufacturer, we offers Bits with BR shank type are available in a full range of sizes , and all our products are with a number of custom design features for optimum performance in a rock formation, which are designed to match all conceivable applications for water well industries, stone quarrying, 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.
Semi-Ballistic/Parabolic Buttons
Excellent penetration rate, but only suited to medium hard and not so very abrasive rock formation.
