Product details
Drillers are made of high quality raw materials, advanced technology and strict quality inspection. The product range covers: drillhammer drills (drillhammer and drillbit), drill pipe thread drills of various sizes, reverse circulation hammer drills, bit tail and connecting sleeve and drilling equipment.
The impactor is connected to the drill bit for drilling engineering.Using high quality steel and optimal horizontal alloy steel as raw materials, special heat treatment process and advanced cemented carbide insert technology enable the drill bit to function well even in hard rock strata, and save energy at the same time.
Q1.Are you a manufacturer or trading company?
A:We are professional manufacturer in Hunan,China.
Both OEM & ODM service can be accepted.
Q2.What’s your delivery time?
A:Generally 3 to 7 days, if urgently order, pls contact our sales in advance.
Q3.How long is your air compressor warranty?
A:One year for the whole machine and two years for screw air end, except consumble spare parts.
The utility model relates to a deep hole drill bit;
Including the drill handle and the front end of the drill bit, the front end of the drill part and the outer edge of the surface is provided with a chamfered bevel, chamfered bevel is provided with two inner and outer rings spaced each other, ring teeth comprises a plurality of spaced carbide teeth;
The front surface of the drill part is provided with a plurality of hard alloy teeth, the outer edge of the drill part is provided with a plurality of rows of powder groove, and a plurality of rows of powder groove between non-equidistant spacing arranged;
The utility model has the advantages of reasonable structure, two rings of carbide teeth with different spacing arranged on the chamfered inclined surface are mismatched with the rotating speed to improve the cutting efficiency of the bit and avoid the reduction of the service life caused by local wear and transition;
The non-equidistant spacing between the flushing grooves is arranged to meet the flushing requirements of each gear ring at different rotation rates, so as to avoid the problem of too high temperature of drill bit and low drilling efficiency caused by poor flushing.
http://www.jsdrilltools.com/
