PRIMA DTH DRILLING BITS ARE MADE FROM HIGH ALLOY STEEL TO WITHSTAND HIGH PRESSURE AND FATIGUE STRESS...BUTTTON HOLE DRILLING IS DONE ON 5 AXIS CNC MACHINE WITH SOLID CARBIDE DRILL TO GIVE ACCURACY...TUNGSTEN CARBIDE BUTTONS,WICH IS THE CORE OF BIT IS HIGH WEAR RESISTANT BUTTONS SOURCED FROM EASTEARN EUROPE.
Other Specifications Download Specification | |
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Button Bit Diameter | "115 (4 ½) " mm |
Compatible Size Of Hammer | 4 inches |
Compatible Make / Model Of Hammers | GD4 |
Suitability Of Usage | Suitable for use in down the hole pneumatic hammers for water well drilling in hard rock formation |
Material (Steel Grade / Specn) Used For DTH Button Bits | EN-36C |
Minimum Guaranteed Drilling Depth | 350 Meters |
Max. Working Pressure Withstood By The Button Bits | 200PSI |
Type Of Hardening | CASE HARDNING |
Minimum Depth Of Hardening | 0.5 mm |
Minimum Hardness Maintained At Shank Of The Button Bit | 58 HRC |
Maximum Hardness Maintained At Shank Of The Button Bit | 60 HRC |
Minimum Hardness Maintained At Core Of The Button Bit | 38 HRC |
Maximum Hardness Maintained At Core Of The Button Bit | 41 HRC |
Number Of Tungsten Carbide Buttons Fixed In Each Button Bit | 14 nos. |
Availability Of Drawing/design Of The Button Bit On The Firm's Website. | yes |