Heavy Duty double start auger built-in with round shank pick. Generally used for cutting medium-soft rock formations, low fractured medium-hard rock formation and decompressed rock formations.

Heavy Duty double start auger built-in with round shank. Generally used for cutting fractured medium-hard rock formation combined with fineds and coarse soil formation

	1.Non-front edge double-head single spiral Main application: gravel, boulder and medium mantle rock
	2.Soil layer double-head single spiral Main application: soft stiffsilt and clay, loose to mediumdense sand and gravel
	3.Rock double-head double-spiral spiral Main application: Dense sand, granvle and medium up to weak rock.
	4. Rock double-head double-single spiral Main application: Dense sand, granvle and medium up to weak rock.
	5.Rock signal-head double-single spiral Main application: Dense sand, granvle and medium up to weak rock.
	6.Rock double-head double-spiral spiral Main application: Dense sand, granvle and medium up to weak rock.
	7.Rock double-head single-spiral cone spiral Main application: Dense sand, granvle and medium up to weak rock.
	8.Rock single-head single-spiral spiral Main application: Dense sand, granvle and medium up to weak rock.

Specification