T45 76mm 82mm 89mm 115mm Hydraulic top hammer button rock drilling bits

high quality 32mm,34mm,36mm,38mm,41mm conical rock drilling bits/taper rock drilling bits for hard rock drilling

1 Product description of Rock Drilling Bits

Materials and produce process details :

Materials- we use 45CrNiMoVA and YK05 Tungsten carbide to produce our taper drill bit , both are famous materials for drill bit produce in the world .

Advanced technology---We produce our taper button drill bit with hot-pressing technology which is the best-advanced technology of producing taper button bit up to date .

Button bits should be reground when penetration rates drop or if the cemented carbide shows signs of damage
Fixed grinding routines often result in good working practices .

Bits for instance , can be examined and then reground after a specific number of holes, or at the end of the shift . Premature grinding is not necessarily uneconomical since less carbide needs to be ground off . It is better to regrind rather than reducing productivity due to damage .
Correct grinding adds considerably to drill bit service life . But equally important , it also enhances the performance of the entire drilling operation , especially hole straightness .

Grinding cone drill holes is the most popular cone drill bit having a head diameter selected from a variety of 48 mm to 26 mm . With carbide drill thermocompression scalloped skirt portion , the tapered scalloped drill bit having good properties and excellent in life .

2 Product Data​ of Rock Drilling Bits

We manufacture various tapered button bits in different degrees as below :

Bit diameter: 32mm ~ 41mm ;
Tapered degree : 4°46’ , 6° , 7° , 11° , 12° ;
Shank sizes: Hex. 19mm, Hex, 22mm and Hex. 25mm;
Buttons configuration : 4 buttons , 5 buttons , 6 buttons , 7 buttons , 8 buttons