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DTH Bits-QL50-152 for very hard granite mining
- Code No.: QL50-152
- Diameter: 152mm
- Air Holes No.: 2
- Gauge Buttons: 9*16mm
- Face Buttons: 6*16mm
- Drop Centre: 5*14mm
- Advantage : Good drilling stability, straight hole
- Carbide Design: Dome
- Approx. Weight: 25KG
ProDrill manufactures rock drill bits DTH Hammer Bits with QL shank type are available in a various range of sizes and with a number of custom design features for optimum performance in a rock formation.
Shank type: QL40, QL50, QL60, QL80 ; and DTH bits hole diameter: 3", 4", 5", 6", 8"(85mm-350mm).
Drop Centre Face Bit
An universal design, especially for hard and abrasive rock formation. Normally, drop centre face with hemispherical buttons design is the most popular choice.
This kind of face shape is suitable for hard to very hard and abrasive rock formations in application with high air pressure. Good penetration rates an resistance to steel wash. Good drilling stability, straight hole.
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.
QL shank DTH drill bit of rock drilling tools with flat face, 8 dome & 7 ballistic carbide buttons for blasting bore holes, water well drilling.
For more details please watch PDF online: DTH hammer bits with QL shanks Catalogue