Types Of Wood Auger Drill Bit

According to the ground and the soil rejection of the drill bit, it is divided into a wood auger drill bit, single-head single screw, double-head single screw, and double-head double screw. The drill hole diameter is 400-1200mm.

Spiral drill bit classification:
1. The cutting tool used for the soil spiral drill is shovel-shaped wear-resistant alloy bucket teeth and picks, which are mainly used for soil layers above the groundwater level, sand layers, compact sand layers with a small amount of clay, and sand with small particle diameters. There is no loop drilling in the layer. The structure is a straight spiral, and there are three types of bullet-head single screw, double-head single screw, and double-head double screw. The single screw bit is suitable for drilling into the gravel layer and the clay layer with good cementation due to easy slag removal and low rotation resistance. The double screw bit has strong soil carrying capacity and good guiding performance, suitable for drilling into loose formations and soft and hard interbeds. Strata. The drill diameter is 400-2000mm.

2. Rock auger bit The cutting tool used for the rock auger bit is a pick with tungsten-cobalt carbide welded on the tip. Mainly used for non-circular drilling in Fenghua bedrock, well-cemented pebble and gravel strata, and permafrost layers with various drawings. The structure can be straight snails and cone snails. There are various types according to the formation and the performance of the drill bit. Pitch HSS cobalt drill bit, single head single screw, double head single screw, double head double screw drill bit. The drill diameter is 400-2000mm.