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Customized Small Hole Drilling Stone Working Tools

King-Long Brand Small Hole Drilling Stone Working Tools are produced in china by using the highest hollow drill steels. King-Long Taper Drill Rods have three different grades for different markets requirement country to country so the raw materials will be a little different too.

Brief Introduction of KING-LONG Small Hole Drilling Stone Working Tools

King-Long Brand Small Hole Drilling Stone Working Tools are produced with high quality hollow drill steels. King-Long Taper Drill Rods have three different grades for different markets requirement country to country so the raw materials will be a little different too. They are available in different lengthes and can be applied to various applications. They can be used with a variety of rock drills. Specifications can be customized according to user needs.

 

The hollow hexagonal Taper drill rod is a small section drill rod. It is connected to the rock drill by a forged shoulder shank; it is connected with a carbide tip by a cone structure. It has strong bending resistance, and is sturdy and durable, easy to assemble and disassemble


Small Hole Drilling Stone Working Tools are widely used in mine drilling, rock drilling, coal mine rock roads, tunnel excavation and other engineering construction.


In order to use the drill rod correctly and ensure the normal service life, select the correct type of drill rod. It should be ensured that the drill rod and the bit are well matched (the taper is consistent); if the taper of the drill rod is smaller than the taper of the bit, the tip is easy to break.


Some Features of KING-LONG Small Hole Drilling Stone Working Tools

A.  Shank Size: 108mm 159mm.

B.  Hex of Taper Rods: H19 H22 H25.

C. Tapers: 6, 7, 11, 12.

D. Drilling Length: 400mm-10000mm.

E. Hollow Drill Steel Grades: 35, 55, 40(40SiMnCrNiMo), 95 etc.

F. Integral Drill Steels Head Dia: 24mm-44mm.

G. Shank Rod End Connections: R22, R23-Hex22-R23, Hex25-R23. R25-Hex25-R25.

 

Some Photos of King-Long Small Hole Drilling Stone Working Tools Taper Drill Rods in workshop for production and stocked in warehouse. 

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