Threaded Drilling Bit

We are offering threaded drilling bit.
specifications
taper button bit 7, 11, 12degree
thread button bit r25, r28, r32, t38, t45, t51, t60 etc.
parabolic, hemispherical, spherical
specialisted in producing of varies type of button bits in different size in china for many years. Including of tapered button bit, retract button bit, thread button bit.
we can manufacture the following types:
a. Taper button bit
tapered button bit(28mm, 30mm, 32mm, 33mm, 34mm, 36mm, 38mm, 40mm, 42mm, 44mm and so on. With different degree taper)
tapered rod (rod 19mm, 22mm, 25mm; shank hex, 19mm, 22mm)
internal drill rods(chisel bit integral rod. 19mm, 22mm; shank hex. 19mm, 22mm)
b. Thread button bit
thread button bit (33mm, 35mm, 45mm, 51mm, 57mm, 64mm, 70mm, 76mm, 89mm, 102mm, 115mm, 127mm and so on.
r25--38mm, r25--41mm, r28--38mm, r28--41mm
r32; r32--45mm, r32--76mm, r32--89mm, r32--102mm
t38; t38--64mm, t38--76mm, t38--89mm, t38mm--102mm
t45; t45--89mm, t45--102mm
t51; t51--89mm, t51--115mm, t51--127mm).