Description

7 degree 30mm 32mm 34mm Tapered button bit

The applications of our quality products:
Surface and underground mining
water conservancy project
railway,highway,subway and tunneling
quarrying
water well and geothermic drilling
metallurgy

A.Taper button bit(4°46,6°,7°,11°,12°)
H22,30mm,32mm,34mm,36mm,38mm,40mm,41mm,42mm,44mm,45mm,51mm
B.Taper cross bit(4°46,6°,7°,11°,12°)
H22,30mm,32mm,34mm,35mm,36mm,38mm,40mm,41mm,42mm,43mm,45mm,51mm,57mm
H25,30MM,32mm,34mm,35mm,36mm,38mm,60mm
C.Taper Chisel bit(4°46,6°,7°,11°,12°)
H22,30mm,32mm,33mm,34mm,35mm,36mm,37mm,38mm,39mm,40mm,41mm,42mm,43mm,45mm
H25,30mm,32mm,33mm,34mm,35mm,36mm,37mm,38mm,39mm,40mm,41mm,42mm

D Thread button bit
H thread button bit,38mm,41mm,45mm,48mm,51mm,60mm
H thread cross bit,35mm,38mm,41mm,45mm,48mm,51mm,57mm,64mm,70mm,76mm

R25-35mm,38mm,41mm,43mm,45mm

R28-38mm,41mm,43mm,45mm

R32-43mm,45mm,48mm,51mm,57mm,64mm,76mm

R35-48mm,51mm,57mm,64mm,76mm

R38-64mm,76mm,89mm

T38-64mm,76mm,89mm

T45-76mm,89mm,102mm

T51-89mm,102mm,127mm

ST58-102mm,115mm

T60-102mm,115mm,127mm

About Tungsten Carbide inserts
All thread bits are available in various flushing hole configuration.In general,he rule is that semispherical type bladesare applied to very hard rocks.Bassistic type to medium hard and Conical type to soft rocks.The cutton NO.are 5 buttons,6 buttons and 7 buttons.

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