Hollow Stem Auger Components Overview


Heavy Duty Flighting

Our standard flighting is 3/8" (9.5mm) at the outer edge with hardfacing material applied to the working edge. Where severe conditions exist, cobble chasers are available featuring double-thick heavy duty flighting.

Wide Flighting

Each auger size has a standard flighting width as listed on the catalog sheet. Oftentimes, however, there are needs for wider flighted augers to drill larger holes. Mills Machine can custom manufacture augers to whatever width you require.

Flighting Pitch

The pitch on an auger is the distance between the flights. The standard pitch for our augers is listed on each individual catalog sheet. However, the flighting pitch can be custom manufactured to fit your requirements.

Auger I.D.

The I.D. (inside diameter) of Hollow Stem Augers is considered to be the working area of the auger. We manufacture to industry standards, however, we can manufacture any I.D. you might need.

Auger Length

Our stocked augers are available in a standard industry length of 5 feet. We can, however, manufacture augers to any length you need. We have, in the past, manufactured augers up to 40 feet long.

Special Connections

Special connections are available: Tapered threads, Acker connections, Diedrich connection, etc. We also manufacture extra heavy duty tool joints for extreme harsh applications.

Special Materials

Our standard auger comes with 4142 heat-treated steel alloy tool joints, mild steel tube, and 3/8" (9.5 mm) heavy-duty steel flighting with hard-faced carbide along the outer edge. These materials can be modified to meet special or unusual needs, such as non-magnetic or corrosion-resistant material.

Other Modifications

There continue to be special needs for augers that have yet to be defined. Mills Machine stands ready to satisfy those needs. We stock a full line of augers and continue to be a leader in the development and design of custom-made augers fitting the individual requirements of our customers.