Description
The Blue Diamond® HD Auger Bit – 4″ Diameter with 2″ Hex Collar is a heavy-duty drilling tool designed for precision hole digging with Blue Diamond auger drives. Ideal for fencing, landscaping, and utility work, this auger bit delivers clean, consistent holes in a variety of soil conditions.
Manufactured to Blue Diamond’s OEM specifications, the heavy-duty construction provides increased strength and resistance to wear when drilling in compacted or abrasive ground. The 2″ hex collar ensures a secure, non-slip connection to the auger drive for efficient torque transfer and reliable operation.
Manufacturer: Blue Diamond Attachments
Component: Heavy-duty auger bit
Diameter: 4″
Collar Size: 2″ hex
Fits: Blue Diamond Auger Drives with 2″ Hex Output
Purpose: Precision drilling and hole digging
Construction: Heavy-duty, OEM-quality steel for durability and long service life





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