Drill guide bit is a vital device in non-excavation drilling. It is able to be replaced with direct-connected drills, non-magnetic drills and other drills with various structures according to different geological conditions. All of the spare parts of drill guide are manufactured from alloy steels with CNC finishing and heat treatment. Drill guide bit is distinguished for high strength, high wear and impact resistance, convenient disassembly, and easy maintenance.

For our reamers, the water outlet is connected with the cavity so water will flow out fluently. Shafts of the reamers are made from high-strength alloy steel and given heat treatment. Nitriding treatment is required for screws on the 2 ends. Besides, we have set stiffener especially in the cavity to connect with the case for high compressive strength and delivering the rotational torque.

Rock reamers
Shown are the reamers for rock. The outer guide ring is rolled and welded form high-strength steel plates. Flux cored wire is distributed evenly along the outer ring to enhance the reamer’s wear resistance, tensile strength, and service life. The shaft of the reamer is made from low alloy steel having been heat treated, with the threads of 2 ends given Nitriding treatment. Our rock reamer is applicable in various geological environments. The outer circle run-out is smaller than 2mm. The fully sealed rotary structure of the rolling cone cutter is resistant to abrasion, impact and corrosion. According to the wearing conditions, users can send their rolling cone cutters back for replacement or maintenance.

Flow reamers
The shell of flow reamers is manufactured from casted iron. Inside the reamer, there are 3 spiral flow channels with high smoothness and wear resistance. The hardness of the cutters with water cooling spray head and the carbide cutter is up to HRC55, featuring good wear and impact resistance. Caston flow reamer can meet various complex non-excavation underground construction.

Squeeze expanding reamer

Rotary cutting reamer

Barrel reamer

Diameter: 50mm; thickness: 6.5mm; length: 2.5m

Diameter: 73mm; thickness: 8mm; length: 3m

Diameter: 102mm; thickness: 9mm; length: 6m