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5Inch DHD350 Ql50 M50 SD5 Cop54 Down The Hole Button Bits

5Inch DHD350 Ql50 M50 SD5 Cop54 Down The Hole Button Bits

5Inch DHD350 Ql50 M50 SD5 Cop54 Down The Hole Button Bits

Features of DTH(down the hole) hammer bit:

(1) Made from premium quality nickel-alloy steel 25SiMnCrNi2MoVA for increased durability and wear characteristics, and YK 05 tungsten carbide which is same grade as internationally well-known brand.

(2) Apply "hot (thermal) -insertion" processing procedure to insert the buttons as same as internationally well-known brand,

(4) Entire CNC processing procedure ensure the quality consistency and reliable.

(5) Military grade requirements of heat-treatment guarantee durability, specific heat treatment standards and special "stress relief" processes ensure consistent performance.

(6) Designed for maximum performance and hole cleaning ability and high penetration rate.

 5
DHD350R, Cop54

5
M50

5
SD5

5
QL50

5inch (5") DTH Drill Button Bit

DiameterNo.*button  dia. (mm)No.*dia. (mm)weight
   kg
mminchgauge buttonsfront buttonsflushing hole
1305 1/87*Φ167*Φ142*Φ2015
1355 1/47*Φ187*Φ142*Φ2015.5
1405 1/28*Φ168*Φ152*Φ2016
1465 3/48*Φ188*Φ152*Φ2016.5
1505 7/88*Φ188*Φ152*Φ2017.2
15268*Φ188*Φ152*Φ2017.5
1566 1/88*Φ188*Φ162*Φ2018.2


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